72023809472 has 28 divisors (see below), whose sum is σ = 143203101960. Its totient is φ = 35941138176.

The previous prime is 72023809411. The next prime is 72023809493. The reversal of 72023809472 is 27490832027.

It is a happy number.

It is a congruent number.

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, 1072898 + ... + 1138049.

Almost surely, 2^72023809472 is an apocalyptic number.

It is an amenable number.

72023809472 is a deficient number, since it is larger than the sum of its proper divisors (71179292488).

72023809472 is a wasteful number, since it uses less digits than its factorization.

72023809472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211468 (or 2211458 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 72023809472 in words is "seventy-two billion, twenty-three million, eight hundred nine thousand, four hundred seventy-two".