18712496892 has 48 divisors (see below), whose sum is σ = 45147497472. Its totient is φ = 6026039040.

The previous prime is 18712496867. The next prime is 18712496893. The reversal of 18712496892 is 29869421781.

It is a super-3 number, since 3×18712496892³ (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18712496893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178183 + ... + 263009.

It is an arithmetic number, because the mean of its divisors is an integer number (940572864).

Almost surely, 2^18712496892 is an apocalyptic number.

18712496892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18712496892 is an abundant number, since it is smaller than the sum of its proper divisors (26435000580).

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

18712496892 is a wasteful number, since it uses less digits than its factorization.

18712496892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85458 (or 85456 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 57.

The spelling of 18712496892 in words is "eighteen billion, seven hundred twelve million, four hundred ninety-six thousand, eight hundred ninety-two".