77076908563 has 2 divisors, whose sum is σ = 77076908564. Its totient is φ = 77076908562.

The previous prime is 77076908561. The next prime is 77076908611. The reversal of 77076908563 is 36580967077.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77076908563 - 2¹ = 77076908561 is a prime.

Together with 77076908561, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 77076908498 and 77076908507.

It is not a weakly prime, because it can be changed into another prime (77076908561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38538454281 + 38538454282.

It is an arithmetic number, because the mean of its divisors is an integer number (38538454282).

Almost surely, 2^77076908563 is an apocalyptic number.

77076908563 is a deficient number, since it is larger than the sum of its proper divisors (1).

77076908563 is an equidigital number, since it uses as much as digits as its factorization.

77076908563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13335840, while the sum is 58.

The spelling of 77076908563 in words is "seventy-seven billion, seventy-six million, nine hundred eight thousand, five hundred sixty-three".