76563910873 has 2 divisors, whose sum is σ = 76563910874. Its totient is φ = 76563910872.

The previous prime is 76563910859. The next prime is 76563910889. The reversal of 76563910873 is 37801936567.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70456800969 + 6107109904 = 265437^2 + 78148^2 .

It is a cyclic number.

It is not a de Polignac number, because 76563910873 - 2²⁹ = 76027039961 is a prime.

It is not a weakly prime, because it can be changed into another prime (76563914873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38281955436 + 38281955437.

It is an arithmetic number, because the mean of its divisors is an integer number (38281955437).

Almost surely, 2^76563910873 is an apocalyptic number.

It is an amenable number.

76563910873 is a deficient number, since it is larger than the sum of its proper divisors (1).

76563910873 is an equidigital number, since it uses as much as digits as its factorization.

76563910873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 76563910873 in words is "seventy-six billion, five hundred sixty-three million, nine hundred ten thousand, eight hundred seventy-three".