18725732964 has 27 divisors (see below), whose sum is σ = 47336567187. Its totient is φ = 6241637304.

The previous prime is 18725732953. The next prime is 18725732983. The reversal of 18725732964 is 46923752781.

It is a happy number.

The square root of 18725732964 is 136842.

It is a perfect power (a square), and thus also a powerful number.

18725732964 is a `hidden beast` number, since 1 + 8 + 7 + 2 + 573 + 2 + 9 + 64 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18725732964.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 809649 + ... + 832455.

Almost surely, 2^18725732964 is an apocalyptic number.

18725732964 is the 136842-nd square number.

It is an amenable number.

18725732964 is an abundant number, since it is smaller than the sum of its proper divisors (28610834223).

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

18725732964 is an frugal number, since it uses more digits than its factorization.

18725732964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45624 (or 22812 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

It can be divided in two parts, 18725 and 732964, that added together give a square (751689 = 867²).

The spelling of 18725732964 in words is "eighteen billion, seven hundred twenty-five million, seven hundred thirty-two thousand, nine hundred sixty-four".