77791084790 has 16 divisors (see below), whose sum is σ = 140027352480. Its totient is φ = 31115678400.

The previous prime is 77791084783. The next prime is 77791084807. The reversal of 77791084790 is 9748019777.

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, 542690 + ... + 670890.

It is an arithmetic number, because the mean of its divisors is an integer number (8751709530).

Almost surely, 2^77791084790 is an apocalyptic number.

77791084790 is a deficient number, since it is larger than the sum of its proper divisors (62236267690).

77791084790 is a wasteful number, since it uses less digits than its factorization.

77791084790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188887.

The product of its (nonzero) digits is 6223392, while the sum is 59.

The spelling of 77791084790 in words is "seventy-seven billion, seven hundred ninety-one million, eighty-four thousand, seven hundred ninety".