18057491184 has 40 divisors (see below), whose sum is σ = 46961614800. Its totient is φ = 5978764288.

The previous prime is 18057491159. The next prime is 18057491203. The reversal of 18057491184 is 48119475081.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1255257 + ... + 1269560.

It is an arithmetic number, because the mean of its divisors is an integer number (1174040370).

Almost surely, 2^18057491184 is an apocalyptic number.

It is an amenable number.

18057491184 is an abundant number, since it is smaller than the sum of its proper divisors (28904123616).

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

18057491184 is a wasteful number, since it uses less digits than its factorization.

18057491184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524977 (or 2524971 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 48.

The spelling of 18057491184 in words is "eighteen billion, fifty-seven million, four hundred ninety-one thousand, one hundred eighty-four".