77976930959 has 2 divisors, whose sum is σ = 77976930960. Its totient is φ = 77976930958.

The previous prime is 77976930937. The next prime is 77976930971. The reversal of 77976930959 is 95903967977.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77976930959 - 2²⁸ = 77708495503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77976930892 and 77976930901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77976930919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38988465479 + 38988465480.

It is an arithmetic number, because the mean of its divisors is an integer number (38988465480).

Almost surely, 2^77976930959 is an apocalyptic number.

77976930959 is a deficient number, since it is larger than the sum of its proper divisors (1).

77976930959 is an equidigital number, since it uses as much as digits as its factorization.

77976930959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 202538070, while the sum is 71.

The spelling of 77976930959 in words is "seventy-seven billion, nine hundred seventy-six million, nine hundred thirty thousand, nine hundred fifty-nine".