77886716339 has 2 divisors, whose sum is σ = 77886716340. Its totient is φ = 77886716338.

The previous prime is 77886716317. The next prime is 77886716363. The reversal of 77886716339 is 93361768877.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77886716339 - 2¹² = 77886712243 is a prime.

It is not a weakly prime, because it can be changed into another prime (77886716399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38943358169 + 38943358170.

It is an arithmetic number, because the mean of its divisors is an integer number (38943358170).

Almost surely, 2^77886716339 is an apocalyptic number.

77886716339 is a deficient number, since it is larger than the sum of its proper divisors (1).

77886716339 is an equidigital number, since it uses as much as digits as its factorization.

77886716339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64012032, while the sum is 65.

The spelling of 77886716339 in words is "seventy-seven billion, eight hundred eighty-six million, seven hundred sixteen thousand, three hundred thirty-nine".