18813194496 has 108 divisors (see below), whose sum is σ = 54281813040. Its totient is φ = 6266588160.

The previous prime is 18813194479. The next prime is 18813194501. The reversal of 18813194496 is 69449131881.

18813194496 is a `hidden beast` number, since 18 + 8 + 131 + 9 + 4 + 496 = 666.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5387311 + ... + 5390801.

It is an arithmetic number, because the mean of its divisors is an integer number (502609380).

Almost surely, 2^18813194496 is an apocalyptic number.

18813194496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18813194496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27140906520).

18813194496 is an abundant number, since it is smaller than the sum of its proper divisors (35468618544).

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

18813194496 is a wasteful number, since it uses less digits than its factorization.

18813194496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5852 (or 5835 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The spelling of 18813194496 in words is "eighteen billion, eight hundred thirteen million, one hundred ninety-four thousand, four hundred ninety-six".