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86969589221376 = 211331583993557
BaseRepresentation
bin10011110001100100101111…
…011110001100100000000000
3102101221012201012120101022000
4103301210233132030200000
542344402204320041001
6504545135553344000
724214226332045431
oct2361445736144000
9371835635511260
1086969589221376
1125790660906394
129907357568000
13396b273c7c084
1417694c9db3488
15a0c42a41ba86
hex4f192f78c800

86969589221376 has 192 divisors, whose sum is σ = 257787763833600. Its totient is φ = 28971520671744.

The previous prime is 86969589221371. The next prime is 86969589221387. The reversal of 86969589221376 is 67312298596968.

86969589221376 is a `hidden beast` number, since 8 + 6 + 9 + 6 + 9 + 589 + 2 + 21 + 3 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 86969589221295 and 86969589221304.

It is not an unprimeable number, because it can be changed into a prime (86969589221371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87036790 + ... + 88030346.

It is an arithmetic number, because the mean of its divisors is an integer number (1342644603300).

Almost surely, 286969589221376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86969589221376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128893881916800).

86969589221376 is an abundant number, since it is smaller than the sum of its proper divisors (170818174612224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86969589221376 is a wasteful number, since it uses less digits than its factorization.

86969589221376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995171 (or 995145 counting only the distinct ones).

The product of its digits is 4232632320, while the sum is 81.

The spelling of 86969589221376 in words is "eighty-six trillion, nine hundred sixty-nine billion, five hundred eighty-nine million, two hundred twenty-one thousand, three hundred seventy-six".