77913296368 has 40 divisors (see below), whose sum is σ = 157286026800. Its totient is φ = 37342685184.

The previous prime is 77913296359. The next prime is 77913296393. The reversal of 77913296368 is 86369231977.

It is a congruent number.

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, 539521 + ... + 668512.

It is an arithmetic number, because the mean of its divisors is an integer number (3932150670).

Almost surely, 2^77913296368 is an apocalyptic number.

It is an amenable number.

77913296368 is an abundant number, since it is smaller than the sum of its proper divisors (79372730432).

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

77913296368 is a wasteful number, since it uses less digits than its factorization.

77913296368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208209 (or 1208203 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 61.

The spelling of 77913296368 in words is "seventy-seven billion, nine hundred thirteen million, two hundred ninety-six thousand, three hundred sixty-eight".