77713090768 has 40 divisors (see below), whose sum is σ = 158526594720. Its totient is φ = 36803848320.

The previous prime is 77713090747. The next prime is 77713090769. The reversal of 77713090768 is 86709031777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77713090769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1612071 + ... + 1659577.

It is an arithmetic number, because the mean of its divisors is an integer number (3963164868).

Almost surely, 2^77713090768 is an apocalyptic number.

It is an amenable number.

77713090768 is an abundant number, since it is smaller than the sum of its proper divisors (80813503952).

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

77713090768 is a wasteful number, since it uses less digits than its factorization.

77713090768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52915 (or 52909 counting only the distinct ones).

The product of its (nonzero) digits is 3111696, while the sum is 55.

The spelling of 77713090768 in words is "seventy-seven billion, seven hundred thirteen million, ninety thousand, seven hundred sixty-eight".