72389830020 has 48 divisors (see below), whose sum is σ = 203265780480. Its totient is φ = 19249263616.

The previous prime is 72389830013. The next prime is 72389830021. The reversal of 72389830020 is 2003898327.

It is not an unprimeable number, because it can be changed into a prime (72389830021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1687740 + ... + 1730099.

It is an arithmetic number, because the mean of its divisors is an integer number (4234703760).

Almost surely, 2^72389830020 is an apocalyptic number.

It is an amenable number.

72389830020 is an abundant number, since it is smaller than the sum of its proper divisors (130875950460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72389830020 is a wasteful number, since it uses less digits than its factorization.

72389830020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3418204 (or 3418202 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 72389830020 in words is "seventy-two billion, three hundred eighty-nine million, eight hundred thirty thousand, twenty".