18872044365 has 64 divisors (see below), whose sum is σ = 31250644992. Its totient is φ = 9719001600.

The previous prime is 18872044351. The next prime is 18872044393. The reversal of 18872044365 is 56344027881.

It is not a de Polignac number, because 18872044365 - 2⁴ = 18872044349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40760124 + ... + 40760586.

It is an arithmetic number, because the mean of its divisors is an integer number (488291328).

Almost surely, 2^18872044365 is an apocalyptic number.

18872044365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18872044365 is a deficient number, since it is larger than the sum of its proper divisors (12378600627).

18872044365 is a wasteful number, since it uses less digits than its factorization.

18872044365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050.

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 18872044365 in words is "eighteen billion, eight hundred seventy-two million, forty-four thousand, three hundred sixty-five".