86235878556 has 60 divisors (see below), whose sum is σ = 227059592760. Its totient is φ = 28538477280.

The previous prime is 86235878543. The next prime is 86235878653. The reversal of 86235878556 is 65587853268.

86235878556 is a `hidden beast` number, since 8 + 6 + 2 + 3 + 5 + 8 + 78 + 556 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 86235878493 and 86235878502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 912375 + ... + 1002446.

It is an arithmetic number, because the mean of its divisors is an integer number (3784326546).

Almost surely, 2^86235878556 is an apocalyptic number.

It is an amenable number.

86235878556 is an abundant number, since it is smaller than the sum of its proper divisors (140823714204).

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

86235878556 is a wasteful number, since it uses less digits than its factorization.

86235878556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914976 (or 1914965 counting only the distinct ones).

The product of its digits is 96768000, while the sum is 63.

The spelling of 86235878556 in words is "eighty-six billion, two hundred thirty-five million, eight hundred seventy-eight thousand, five hundred fifty-six".