77331604256 has 48 divisors (see below), whose sum is σ = 152680870944. Its totient is φ = 38555672064.

The previous prime is 77331604223. The next prime is 77331604271. The reversal of 77331604256 is 65240613377.

It is a super-3 number, since 3×77331604256³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25081691 + ... + 25084773.

It is an arithmetic number, because the mean of its divisors is an integer number (3180851478).

Almost surely, 2^77331604256 is an apocalyptic number.

It is an amenable number.

77331604256 is a deficient number, since it is larger than the sum of its proper divisors (75349266688).

77331604256 is a wasteful number, since it uses less digits than its factorization.

77331604256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5073 (or 5065 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 77331604256 in words is "seventy-seven billion, three hundred thirty-one million, six hundred four thousand, two hundred fifty-six".