77903086716 has 96 divisors (see below), whose sum is σ = 248579681280. Its totient is φ = 20545866432.

The previous prime is 77903086691. The next prime is 77903086739. The reversal of 77903086716 is 61768030977.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3953496 + ... + 3973151.

It is an arithmetic number, because the mean of its divisors is an integer number (2589371680).

Almost surely, 2^77903086716 is an apocalyptic number.

It is an amenable number.

77903086716 is an abundant number, since it is smaller than the sum of its proper divisors (170676594564).

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

77903086716 is a wasteful number, since it uses less digits than its factorization.

77903086716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7926680 (or 7926672 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 54.

The spelling of 77903086716 in words is "seventy-seven billion, nine hundred three million, eighty-six thousand, seven hundred sixteen".