76672275055721 has 2 divisors, whose sum is σ = 76672275055722. Its totient is φ = 76672275055720.

The previous prime is 76672275055697. The next prime is 76672275055781. The reversal of 76672275055721 is 12755057227667.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41014597381696 + 35657677674025 = 6404264^2 + 5971405^2 .

It is a cyclic number.

It is not a de Polignac number, because 76672275055721 - 2¹⁸ = 76672274793577 is a prime.

It is not a weakly prime, because it can be changed into another prime (76672275055781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38336137527860 + 38336137527861.

It is an arithmetic number, because the mean of its divisors is an integer number (38336137527861).

Almost surely, 2^{76672275055721} is an apocalyptic number.

It is an amenable number.

76672275055721 is a deficient number, since it is larger than the sum of its proper divisors (1).

76672275055721 is an equidigital number, since it uses as much as digits as its factorization.

76672275055721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86436000, while the sum is 62.

The spelling of 76672275055721 in words is "seventy-six trillion, six hundred seventy-two billion, two hundred seventy-five million, fifty-five thousand, seven hundred twenty-one".