72128463594 has 64 divisors (see below), whose sum is σ = 165697920000. Its totient is φ = 20701232640.

The previous prime is 72128463587. The next prime is 72128463643. The reversal of 72128463594 is 49536482127.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8383707 + ... + 8392305.

It is an arithmetic number, because the mean of its divisors is an integer number (2589030000).

Almost surely, 2^72128463594 is an apocalyptic number.

72128463594 is an abundant number, since it is smaller than the sum of its proper divisors (93569456406).

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

72128463594 is a wasteful number, since it uses less digits than its factorization.

72128463594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15323.

The product of its digits is 2903040, while the sum is 51.

The spelling of 72128463594 in words is "seventy-two billion, one hundred twenty-eight million, four hundred sixty-three thousand, five hundred ninety-four".