72505677230 has 16 divisors (see below), whose sum is σ = 149154536160. Its totient is φ = 24859089312.

The previous prime is 72505677173. The next prime is 72505677239. The reversal of 72505677230 is 3277650527.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72505677239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517897625 + ... + 517897764.

It is an arithmetic number, because the mean of its divisors is an integer number (9322158510).

Almost surely, 2^72505677230 is an apocalyptic number.

72505677230 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72505677230 is an abundant number, since it is smaller than the sum of its proper divisors (76648858930).

72505677230 is a wasteful number, since it uses less digits than its factorization.

72505677230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035795403.

The product of its (nonzero) digits is 617400, while the sum is 44.

The spelling of 72505677230 in words is "seventy-two billion, five hundred five million, six hundred seventy-seven thousand, two hundred thirty".