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86615716992 = 2737179719541
BaseRepresentation
bin101000010101010110…
…0101111010010000000
322021120101202022121020
41100222230233102000
52404342110420432
6103442443225440
76154263306150
oct1205254572200
9267511668536
1086615716992
1133808350192
1214953518280
13822494025c
144299662760
1523be1cb22c
hex142ab2f480

86615716992 has 256 divisors, whose sum is σ = 281292238080. Its totient is φ = 23050321920.

The previous prime is 86615716987. The next prime is 86615717029. The reversal of 86615716992 is 29961751668.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4422742 + ... + 4442282.

It is an arithmetic number, because the mean of its divisors is an integer number (1098797805).

Almost surely, 286615716992 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 86615716992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140646119040).

86615716992 is an abundant number, since it is smaller than the sum of its proper divisors (194676521088).

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

86615716992 is a wasteful number, since it uses less digits than its factorization.

86615716992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19679 (or 19667 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 60.

The spelling of 86615716992 in words is "eighty-six billion, six hundred fifteen million, seven hundred sixteen thousand, nine hundred ninety-two".