18744205864896 has 168 divisors, whose sum is σ = 58157376588240. Its totient is φ = 5919222707712.

The previous prime is 18744205864873. The next prime is 18744205865003. The reversal of 18744205864896 is 69846850244781.

18744205864896 is a `hidden beast` number, since 1 + 8 + 7 + 4 + 420 + 58 + 64 + 8 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14400211 + ... + 15647826.

Almost surely, 2^{18744205864896} is an apocalyptic number.

18744205864896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18744205864896 is an abundant number, since it is smaller than the sum of its proper divisors (39413170723344).

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

18744205864896 is a wasteful number, since it uses less digits than its factorization.

18744205864896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30048096 (or 30048061 counting only the distinct ones).

The product of its (nonzero) digits is 743178240, while the sum is 72.

The spelling of 18744205864896 in words is "eighteen trillion, seven hundred forty-four billion, two hundred five million, eight hundred sixty-four thousand, eight hundred ninety-six".