18683700372 has 72 divisors (see below), whose sum is σ = 48833820672. Its totient is φ = 6016852800.

The previous prime is 18683700367. The next prime is 18683700391. The reversal of 18683700372 is 27300738681.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 663622 + ... + 691202.

Almost surely, 2^18683700372 is an apocalyptic number.

18683700372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18683700372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24416910336).

18683700372 is an abundant number, since it is smaller than the sum of its proper divisors (30150120300).

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

18683700372 is a wasteful number, since it uses less digits than its factorization.

18683700372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28229 (or 28224 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 18683700372 in words is "eighteen billion, six hundred eighty-three million, seven hundred thousand, three hundred seventy-two".