18200874620 has 12 divisors (see below), whose sum is σ = 38221836744. Its totient is φ = 7280349840.

The previous prime is 18200874619. The next prime is 18200874623. The reversal of 18200874620 is 2647800281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18200874623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455021846 + ... + 455021885.

It is an arithmetic number, because the mean of its divisors is an integer number (3185153062).

Almost surely, 2^18200874620 is an apocalyptic number.

18200874620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18200874620 is an abundant number, since it is smaller than the sum of its proper divisors (20020962124).

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

18200874620 is a wasteful number, since it uses less digits than its factorization.

18200874620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910043740 (or 910043738 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The spelling of 18200874620 in words is "eighteen billion, two hundred million, eight hundred seventy-four thousand, six hundred twenty".