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85125758195520 = 26325719321878279
BaseRepresentation
bin10011010110101111100010…
…100101000001011101000000
3102011101221110110012101211100
4103112233202211001131000
542124200023044224040
6501014122231414400
723634063433654110
oct2326574245013500
9364357413171740
1085125758195520
112513a6a4306299
129669b38224400
13386642b076313
14170417430b040
159c94b28d2b30
hex4d6be2941740

85125758195520 has 336 divisors, whose sum is σ = 336359127087360. Its totient is φ = 19356500164608.

The previous prime is 85125758195431. The next prime is 85125758195551. The reversal of 85125758195520 is 2559185752158.

85125758195520 is a `hidden beast` number, since 8 + 5 + 1 + 2 + 5 + 75 + 8 + 1 + 9 + 552 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7048260 + ... + 14830019.

Almost surely, 285125758195520 is an apocalyptic number.

85125758195520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85125758195520 is an abundant number, since it is smaller than the sum of its proper divisors (251233368891840).

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

85125758195520 is a wasteful number, since it uses less digits than its factorization.

85125758195520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21878502 (or 21878489 counting only the distinct ones).

The product of its (nonzero) digits is 50400000, while the sum is 63.

The spelling of 85125758195520 in words is "eighty-five trillion, one hundred twenty-five billion, seven hundred fifty-eight million, one hundred ninety-five thousand, five hundred twenty".