72515422608 has 20 divisors (see below), whose sum is σ = 187331508528. Its totient is φ = 24171807520.

The previous prime is 72515422583. The next prime is 72515422621. The reversal of 72515422608 is 80622451527.

It is a self number, because there is not a number n which added to its sum of digits gives 72515422608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755368938 + ... + 755369033.

Almost surely, 2^72515422608 is an apocalyptic number.

It is an amenable number.

72515422608 is an abundant number, since it is smaller than the sum of its proper divisors (114816085920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72515422608 is a wasteful number, since it uses less digits than its factorization.

72515422608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510737982 (or 1510737976 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 72515422608 in words is "seventy-two billion, five hundred fifteen million, four hundred twenty-two thousand, six hundred eight".