18748540800 has 384 divisors, whose sum is σ = 74855923200. Its totient is φ = 4544870400.

The previous prime is 18748540799. The next prime is 18748540813. The reversal of 18748540800 is 804584781.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 940537 + ... + 960263.

It is an arithmetic number, because the mean of its divisors is an integer number (194937300).

Almost surely, 2^18748540800 is an apocalyptic number.

18748540800 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 18748540800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37427961600).

18748540800 is an abundant number, since it is smaller than the sum of its proper divisors (56107382400).

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

18748540800 is a wasteful number, since it uses less digits than its factorization.

18748540800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19771 (or 19748 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The spelling of 18748540800 in words is "eighteen billion, seven hundred forty-eight million, five hundred forty thousand, eight hundred".