18744473133800 has 48 divisors (see below), whose sum is σ = 43677962383500. Its totient is φ = 7481090355200.

The previous prime is 18744473133769. The next prime is 18744473133803. The reversal of 18744473133800 is 833137444781.

It can be written as a sum of positive squares in 6 ways, for example, as 8729058432004 + 10015414701796 = 2954498^2 + 3164714^2 .

It is not an unprimeable number, because it can be changed into a prime (18744473133803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104278091 + ... + 104457690.

Almost surely, 2^{18744473133800} is an apocalyptic number.

18744473133800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18744473133800 is an abundant number, since it is smaller than the sum of its proper divisors (24933489249700).

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

18744473133800 is a wasteful number, since it uses less digits than its factorization.

18744473133800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208736246 (or 208736237 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 53.

The spelling of 18744473133800 in words is "eighteen trillion, seven hundred forty-four billion, four hundred seventy-three million, one hundred thirty-three thousand, eight hundred".