72339893690 has 32 divisors (see below), whose sum is σ = 130756830336. Its totient is φ = 28814927680.

The previous prime is 72339893683. The next prime is 72339893737. The reversal of 72339893690 is 9639893327.

It is a super-2 number, since 2×72339893690² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13076225 + ... + 13081755.

It is an arithmetic number, because the mean of its divisors is an integer number (4086150948).

Almost surely, 2^72339893690 is an apocalyptic number.

72339893690 is a deficient number, since it is larger than the sum of its proper divisors (58416936646).

72339893690 is a wasteful number, since it uses less digits than its factorization.

72339893690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10774.

The product of its (nonzero) digits is 13226976, while the sum is 59.

The spelling of 72339893690 in words is "seventy-two billion, three hundred thirty-nine million, eight hundred ninety-three thousand, six hundred ninety".