18654822912 has 80 divisors (see below), whose sum is σ = 54215628192. Its totient is φ = 5652971520.

The previous prime is 18654822899. The next prime is 18654822919. The reversal of 18654822912 is 21922845681.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (18654822919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535153 + ... + 568944.

Almost surely, 2^18654822912 is an apocalyptic number.

18654822912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18654822912 is an abundant number, since it is smaller than the sum of its proper divisors (35560805280).

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

18654822912 is a wasteful number, since it uses less digits than its factorization.

18654822912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104129 (or 1104113 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The spelling of 18654822912 in words is "eighteen billion, six hundred fifty-four million, eight hundred twenty-two thousand, nine hundred twelve".