77705694124 has 12 divisors (see below), whose sum is σ = 136069913448. Its totient is φ = 38828576000.

The previous prime is 77705694113. The next prime is 77705694137. The reversal of 77705694124 is 42149650777.

It is a happy number.

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, 6060562 + ... + 6073369.

It is an arithmetic number, because the mean of its divisors is an integer number (11339159454).

Almost surely, 2^77705694124 is an apocalyptic number.

It is an amenable number.

77705694124 is a deficient number, since it is larger than the sum of its proper divisors (58364219324).

77705694124 is a wasteful number, since it uses less digits than its factorization.

77705694124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12135536 (or 12135534 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 52.

The spelling of 77705694124 in words is "seventy-seven billion, seven hundred five million, six hundred ninety-four thousand, one hundred twenty-four".