86725572894 has 24 divisors (see below), whose sum is σ = 189339805512. Its totient is φ = 28687847760.

The previous prime is 86725572877. The next prime is 86725572919. The reversal of 86725572894 is 49827552768.

86725572894 is a `hidden beast` number, since 8 + 6 + 72 + 557 + 2 + 8 + 9 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18387289 + ... + 18392004.

It is an arithmetic number, because the mean of its divisors is an integer number (7889158563).

Almost surely, 2^86725572894 is an apocalyptic number.

86725572894 is an abundant number, since it is smaller than the sum of its proper divisors (102614232618).

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

86725572894 is a wasteful number, since it uses less digits than its factorization.

86725572894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36779432 (or 36779429 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 63.

The spelling of 86725572894 in words is "eighty-six billion, seven hundred twenty-five million, five hundred seventy-two thousand, eight hundred ninety-four".