725047894989 has 24 divisors (see below), whose sum is σ = 1152610348032. Its totient is φ = 435534261120.

The previous prime is 725047894913. The next prime is 725047894997. The reversal of 725047894989 is 989498740527.

725047894989 is a `hidden beast` number, since 7 + 2 + 50 + 4 + 7 + 89 + 498 + 9 = 666.

It is not a de Polignac number, because 725047894989 - 2⁸ = 725047894733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725047894189) 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 23 ways as a sum of consecutive naturals, for example, 32394637 + ... + 32417010.

It is an arithmetic number, because the mean of its divisors is an integer number (48025431168).

Almost surely, 2^725047894989 is an apocalyptic number.

It is an amenable number.

725047894989 is a deficient number, since it is larger than the sum of its proper divisors (427562453043).

725047894989 is a wasteful number, since it uses less digits than its factorization.

725047894989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64811777 (or 64811774 counting only the distinct ones).

The product of its (nonzero) digits is 365783040, while the sum is 72.

The spelling of 725047894989 in words is "seven hundred twenty-five billion, forty-seven million, eight hundred ninety-four thousand, nine hundred eighty-nine".