18943624081199 has 8 divisors (see below), whose sum is σ = 18956450604000. Its totient is φ = 18930798427392.

The previous prime is 18943624081157. The next prime is 18943624081229. The reversal of 18943624081199 is 99118042634981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18943624081199 - 2⁸ = 18943624080943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18943624081799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46832087 + ... + 47234855.

It is an arithmetic number, because the mean of its divisors is an integer number (2369556325500).

Almost surely, 2^{18943624081199} is an apocalyptic number.

18943624081199 is a deficient number, since it is larger than the sum of its proper divisors (12826522801).

18943624081199 is a wasteful number, since it uses less digits than its factorization.

18943624081199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434497.

The product of its (nonzero) digits is 26873856, while the sum is 65.

The spelling of 18943624081199 in words is "eighteen trillion, nine hundred forty-three billion, six hundred twenty-four million, eighty-one thousand, one hundred ninety-nine".