18310506900 has 72 divisors (see below), whose sum is σ = 60546749760. Its totient is φ = 4185258240.

The previous prime is 18310506899. The next prime is 18310506913. The reversal of 18310506900 is 960501381.

It is a super-2 number, since 2×18310506900² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4357545 + ... + 4361744.

It is an arithmetic number, because the mean of its divisors is an integer number (840927080).

Almost surely, 2^18310506900 is an apocalyptic number.

18310506900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18310506900 is an abundant number, since it is smaller than the sum of its proper divisors (42236242860).

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

18310506900 is a wasteful number, since it uses less digits than its factorization.

18310506900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8719313 (or 8719306 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 18310506900 in words is "eighteen billion, three hundred ten million, five hundred six thousand, nine hundred".