18972895292 has 12 divisors (see below), whose sum is σ = 35756610456. Its totient is φ = 8756720880.

The previous prime is 18972895177. The next prime is 18972895297. The reversal of 18972895292 is 29259827981.

It is a super-2 number, since 2×18972895292² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18972895297) 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 3 ways as a sum of consecutive naturals, for example, 182431634 + ... + 182431737.

It is an arithmetic number, because the mean of its divisors is an integer number (2979717538).

Almost surely, 2^18972895292 is an apocalyptic number.

It is an amenable number.

18972895292 is a deficient number, since it is larger than the sum of its proper divisors (16783715164).

18972895292 is a wasteful number, since it uses less digits than its factorization.

18972895292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364863388 (or 364863386 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 62.

The spelling of 18972895292 in words is "eighteen billion, nine hundred seventy-two million, eight hundred ninety-five thousand, two hundred ninety-two".