77707766704 has 20 divisors (see below), whose sum is σ = 150604345576. Its totient is φ = 38842129152.

The previous prime is 77707766693. The next prime is 77707766723. The reversal of 77707766704 is 40766770777.

It is a super-2 number, since 2×77707766704² (a number of 23 digits) contains 22 as substring.

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, 679974 + ... + 785989.

Almost surely, 2^77707766704 is an apocalyptic number.

It is an amenable number.

77707766704 is a deficient number, since it is larger than the sum of its proper divisors (72896578872).

77707766704 is a wasteful number, since it uses less digits than its factorization.

77707766704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469284 (or 1469278 counting only the distinct ones).

The product of its (nonzero) digits is 16941456, while the sum is 58.

The spelling of 77707766704 in words is "seventy-seven billion, seven hundred seven million, seven hundred sixty-six thousand, seven hundred four".