18753834948408 has 96 divisors (see below), whose sum is σ = 58113324796800. Its totient is φ = 5352170209344.

The previous prime is 18753834948349. The next prime is 18753834948487. The reversal of 18753834948408 is 80484943835781.

It is a happy number.

18753834948408 is a `hidden beast` number, since 1 + 8 + 7 + 53 + 8 + 3 + 494 + 84 + 0 + 8 = 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, 20625178 + ... + 21515241.

It is an arithmetic number, because the mean of its divisors is an integer number (605347133300).

Almost surely, 2^{18753834948408} is an apocalyptic number.

18753834948408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18753834948408 is an abundant number, since it is smaller than the sum of its proper divisors (39359489848392).

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

18753834948408 is a wasteful number, since it uses less digits than its factorization.

18753834948408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42141321 (or 42141314 counting only the distinct ones).

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

The spelling of 18753834948408 in words is "eighteen trillion, seven hundred fifty-three billion, eight hundred thirty-four million, nine hundred forty-eight thousand, four hundred eight".