76572515497 has 2 divisors, whose sum is σ = 76572515498. Its totient is φ = 76572515496.

The previous prime is 76572515471. The next prime is 76572515563. The reversal of 76572515497 is 79451527567.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75468880656 + 1103634841 = 274716^2 + 33221^2 .

It is an emirp because it is prime and its reverse (79451527567) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76572515497 is a prime.

It is not a weakly prime, because it can be changed into another prime (76572519497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38286257748 + 38286257749.

It is an arithmetic number, because the mean of its divisors is an integer number (38286257749).

Almost surely, 2^76572515497 is an apocalyptic number.

It is an amenable number.

76572515497 is a deficient number, since it is larger than the sum of its proper divisors (1).

76572515497 is an equidigital number, since it uses as much as digits as its factorization.

76572515497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18522000, while the sum is 58.

The spelling of 76572515497 in words is "seventy-six billion, five hundred seventy-two million, five hundred fifteen thousand, four hundred ninety-seven".