18738713200 has 90 divisors (see below), whose sum is σ = 45448096344. Its totient is φ = 7424835840.

The previous prime is 18738713141. The next prime is 18738713219. The reversal of 18738713200 is 231783781.

It is a super-2 number, since 2×18738713200² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4750429 + ... + 4754371.

Almost surely, 2^18738713200 is an apocalyptic number.

18738713200 is a gapful number since it is divisible by the number (10) 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 18738713200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22724048172).

18738713200 is an abundant number, since it is smaller than the sum of its proper divisors (26709383144).

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

18738713200 is a wasteful number, since it uses less digits than its factorization.

18738713200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4179 (or 4059 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 18738713200 in words is "eighteen billion, seven hundred thirty-eight million, seven hundred thirteen thousand, two hundred".