72219591508 has 24 divisors (see below), whose sum is σ = 133771121120. Its totient is φ = 34020272160.

The previous prime is 72219591473. The next prime is 72219591557. The reversal of 72219591508 is 80519591227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2611266 + ... + 2638777.

Almost surely, 2^72219591508 is an apocalyptic number.

It is an amenable number.

72219591508 is a deficient number, since it is larger than the sum of its proper divisors (61551529612).

72219591508 is a wasteful number, since it uses less digits than its factorization.

72219591508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250247 (or 5250245 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 49.

The spelling of 72219591508 in words is "seventy-two billion, two hundred nineteen million, five hundred ninety-one thousand, five hundred eight".