72930015723 has 4 divisors (see below), whose sum is σ = 97240020968. Its totient is φ = 48620010480.

The previous prime is 72930015707. The next prime is 72930015733. The reversal of 72930015723 is 32751003927.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 72930015723 - 2⁴ = 72930015707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72930015733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12155002618 + ... + 12155002623.

It is an arithmetic number, because the mean of its divisors is an integer number (24310005242).

Almost surely, 2^72930015723 is an apocalyptic number.

72930015723 is a deficient number, since it is larger than the sum of its proper divisors (24310005245).

72930015723 is a wasteful number, since it uses less digits than its factorization.

72930015723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24310005244.

The product of its (nonzero) digits is 79380, while the sum is 39.

The spelling of 72930015723 in words is "seventy-two billion, nine hundred thirty million, fifteen thousand, seven hundred twenty-three".