72140752144 has 20 divisors (see below), whose sum is σ = 139798369296. Its totient is φ = 36063753632.

The previous prime is 72140752037. The next prime is 72140752153. The reversal of 72140752144 is 44125704127.

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, 323434 + ... + 498889.

Almost surely, 2^72140752144 is an apocalyptic number.

It is an amenable number.

72140752144 is a deficient number, since it is larger than the sum of its proper divisors (67657617152).

72140752144 is a wasteful number, since it uses less digits than its factorization.

72140752144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827814 (or 827808 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 37.

The spelling of 72140752144 in words is "seventy-two billion, one hundred forty million, seven hundred fifty-two thousand, one hundred forty-four".