868855791375 has 192 divisors, whose sum is σ = 1901569138560. Its totient is φ = 388856160000.

The previous prime is 868855791337. The next prime is 868855791389. The reversal of 868855791375 is 573197558868.

868855791375 is a `hidden beast` number, since 8 + 68 + 8 + 557 + 9 + 1 + 3 + 7 + 5 = 666.

It is not a de Polignac number, because 868855791375 - 2¹⁰ = 868855790351 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5227045 + ... + 5390705.

It is an arithmetic number, because the mean of its divisors is an integer number (9904005930).

Almost surely, 2^868855791375 is an apocalyptic number.

868855791375 is an abundant number, since it is smaller than the sum of its proper divisors (1032713347185).

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

868855791375 is a wasteful number, since it uses less digits than its factorization.

868855791375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163720 (or 163693 counting only the distinct ones).

The product of its digits is 508032000, while the sum is 72.

The spelling of 868855791375 in words is "eight hundred sixty-eight billion, eight hundred fifty-five million, seven hundred ninety-one thousand, three hundred seventy-five".