18474611712 has 44 divisors (see below), whose sum is σ = 49241583936. Its totient is φ = 6158202880.

The previous prime is 18474611693. The next prime is 18474611731. The reversal of 18474611712 is 21711647481.

It is an interprime number because it is at equal distance from previous prime (18474611693) and next prime (18474611731).

It is a super-2 number, since 2×18474611712² (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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3003864 + ... + 3010007.

Almost surely, 2^18474611712 is an apocalyptic number.

18474611712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18474611712 is an abundant number, since it is smaller than the sum of its proper divisors (30766972224).

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

18474611712 is an equidigital number, since it uses as much as digits as its factorization.

18474611712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6013894 (or 6013876 counting only the distinct ones).

The product of its digits is 75264, while the sum is 42.

The spelling of 18474611712 in words is "eighteen billion, four hundred seventy-four million, six hundred eleven thousand, seven hundred twelve".