18107072800 has 36 divisors (see below), whose sum is σ = 44203893426. Its totient is φ = 7242828800.

The previous prime is 18107072773. The next prime is 18107072807. The reversal of 18107072800 is 827070181.

It can be written as a sum of positive squares in 3 ways, for example, as 16986430224 + 1120642576 = 130332^2 + 33476^2 .

It is not an unprimeable number, because it can be changed into a prime (18107072807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11316121 + ... + 11317720.

Almost surely, 2^18107072800 is an apocalyptic number.

18107072800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18107072800 is an abundant number, since it is smaller than the sum of its proper divisors (26096820626).

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

18107072800 is a wasteful number, since it uses less digits than its factorization.

18107072800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22633861 (or 22633848 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 34.

The spelling of 18107072800 in words is "eighteen billion, one hundred seven million, seventy-two thousand, eight hundred".