18860039596400 has 120 divisors (see below), whose sum is σ = 45943104122784. Its totient is φ = 7438865817600.

The previous prime is 18860039596399. The next prime is 18860039596427. The reversal of 18860039596400 is 469593006881.

It is a self number, because there is not a number n which added to its sum of digits gives 18860039596400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123468872 + ... + 123621528.

Almost surely, 2^{18860039596400} is an apocalyptic number.

18860039596400 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 18860039596400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22971552061392).

18860039596400 is an abundant number, since it is smaller than the sum of its proper divisors (27083064526384).

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

18860039596400 is a wasteful number, since it uses less digits than its factorization.

18860039596400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156979 (or 156968 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 18860039596400 in words is "eighteen trillion, eight hundred sixty billion, thirty-nine million, five hundred ninety-six thousand, four hundred".