18744527549394 has 24 divisors (see below), whose sum is σ = 41102458003152. Its totient is φ = 6172896622200.

The previous prime is 18744527549369. The next prime is 18744527549411. The reversal of 18744527549394 is 49394572544781.

18744527549394 is a `hidden beast` number, since 1 + 8 + 7 + 4 + 4 + 527 + 5 + 4 + 9 + 3 + 94 = 666.

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 11 ways as a sum of consecutive naturals, for example, 6273267432 + ... + 6273270419.

It is an arithmetic number, because the mean of its divisors is an integer number (1712602416798).

Almost surely, 2^{18744527549394} is an apocalyptic number.

18744527549394 is an abundant number, since it is smaller than the sum of its proper divisors (22357930453758).

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

18744527549394 is a wasteful number, since it uses less digits than its factorization.

18744527549394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12546537942 (or 12546537939 counting only the distinct ones).

The product of its digits is 1219276800, while the sum is 72.

The spelling of 18744527549394 in words is "eighteen trillion, seven hundred forty-four billion, five hundred twenty-seven million, five hundred forty-nine thousand, three hundred ninety-four".