77929233964 has 12 divisors (see below), whose sum is σ = 136555371288. Its totient is φ = 38913413600.

The previous prime is 77929233961. The next prime is 77929234021. The reversal of 77929233964 is 46933292977.

It is not an unprimeable number, because it can be changed into a prime (77929233961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12797422 + ... + 12803509.

It is an arithmetic number, because the mean of its divisors is an integer number (11379614274).

Almost surely, 2^77929233964 is an apocalyptic number.

It is an amenable number.

77929233964 is a deficient number, since it is larger than the sum of its proper divisors (58626137324).

77929233964 is a wasteful number, since it uses less digits than its factorization.

77929233964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25601696 (or 25601694 counting only the distinct ones).

The product of its digits is 30862944, while the sum is 61.

The spelling of 77929233964 in words is "seventy-seven billion, nine hundred twenty-nine million, two hundred thirty-three thousand, nine hundred sixty-four".