75858685856 has 24 divisors (see below), whose sum is σ = 149658606720. Its totient is φ = 37850150848.

The previous prime is 75858685841. The next prime is 75858685879. The reversal of 75858685856 is 65858685857.

It is a self number, because there is not a number n which added to its sum of digits gives 75858685856.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2459186 + ... + 2489841.

It is an arithmetic number, because the mean of its divisors is an integer number (6235775280).

Almost surely, 2^75858685856 is an apocalyptic number.

It is an amenable number.

75858685856 is a deficient number, since it is larger than the sum of its proper divisors (73799920864).

75858685856 is a wasteful number, since it uses less digits than its factorization.

75858685856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4949516 (or 4949508 counting only the distinct ones).

The product of its digits is 645120000, while the sum is 71.

Subtracting from 75858685856 its reverse (65858685857), we obtain a palindrome (9999999999).

The spelling of 75858685856 in words is "seventy-five billion, eight hundred fifty-eight million, six hundred eighty-five thousand, eight hundred fifty-six".