76572515493 has 6 divisors (see below), whose sum is σ = 110604744614. Its totient is φ = 51048343656.

The previous prime is 76572515471. The next prime is 76572515497. The reversal of 76572515493 is 39451527567.

It is a happy number.

76572515493 is a `hidden beast` number, since 76 + 5 + 7 + 25 + 1 + 549 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65077030404 + 11495485089 = 255102^2 + 107217^2 .

It is not a de Polignac number, because 76572515493 - 2⁸ = 76572515237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76572515497) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4254028630 + ... + 4254028647.

Almost surely, 2^76572515493 is an apocalyptic number.

It is an amenable number.

76572515493 is a deficient number, since it is larger than the sum of its proper divisors (34032229121).

76572515493 is a wasteful number, since it uses less digits than its factorization.

76572515493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8508057283 (or 8508057280 counting only the distinct ones).

The product of its digits is 7938000, while the sum is 54.

The spelling of 76572515493 in words is "seventy-six billion, five hundred seventy-two million, five hundred fifteen thousand, four hundred ninety-three".