77783916316 has 6 divisors (see below), whose sum is σ = 136121853560. Its totient is φ = 38891958156.

The previous prime is 77783916311. The next prime is 77783916337. The reversal of 77783916316 is 61361938777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77783916311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9722989536 + ... + 9722989543.

Almost surely, 2^77783916316 is an apocalyptic number.

It is an amenable number.

77783916316 is a deficient number, since it is larger than the sum of its proper divisors (58337937244).

77783916316 is a wasteful number, since it uses less digits than its factorization.

77783916316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19445979083 (or 19445979081 counting only the distinct ones).

The product of its digits is 8001504, while the sum is 58.

The spelling of 77783916316 in words is "seventy-seven billion, seven hundred eighty-three million, nine hundred sixteen thousand, three hundred sixteen".