72150473788 has 24 divisors (see below), whose sum is σ = 130632717600. Its totient is φ = 34827135168.

The previous prime is 72150473777. The next prime is 72150473797. The reversal of 72150473788 is 88737405127.

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, 1095406 + ... + 1159402.

It is an arithmetic number, because the mean of its divisors is an integer number (5443029900).

Almost surely, 2^72150473788 is an apocalyptic number.

It is an amenable number.

72150473788 is a deficient number, since it is larger than the sum of its proper divisors (58482243812).

72150473788 is a wasteful number, since it uses less digits than its factorization.

72150473788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73749 (or 73747 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 52.

The spelling of 72150473788 in words is "seventy-two billion, one hundred fifty million, four hundred seventy-three thousand, seven hundred eighty-eight".