75864944946856 has 32 divisors (see below), whose sum is σ = 153209018377800. Its totient is φ = 35009975750400.

The previous prime is 75864944946823. The next prime is 75864944946863. The reversal of 75864944946856 is 65864944946857.

It can be written as a sum of positive squares in 4 ways, for example, as 54687001144356 + 21177943802500 = 7395066^2 + 4601950^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47271795 + ... + 48850306.

Almost surely, 2^{75864944946856} is an apocalyptic number.

It is an amenable number.

75864944946856 is an abundant number, since it is smaller than the sum of its proper divisors (77344073430944).

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

75864944946856 is a wasteful number, since it uses less digits than its factorization.

75864944946856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96129709 (or 96129705 counting only the distinct ones).

The product of its digits is 50164531200, while the sum is 85.

Subtracting from 75864944946856 its reverse (65864944946857), we obtain a palindrome (9999999999999).

The spelling of 75864944946856 in words is "seventy-five trillion, eight hundred sixty-four billion, nine hundred forty-four million, nine hundred forty-six thousand, eight hundred fifty-six".