18494500052 has 12 divisors (see below), whose sum is σ = 36989000160. Its totient is φ = 7926214296.

The previous prime is 18494500027. The next prime is 18494500081. The reversal of 18494500052 is 25000549481.

18494500052 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 18494499979 and 18494500015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330258902 + ... + 330258957.

It is an arithmetic number, because the mean of its divisors is an integer number (3082416680).

Almost surely, 2^18494500052 is an apocalyptic number.

It is an amenable number.

18494500052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18494500052 is a wasteful number, since it uses less digits than its factorization.

18494500052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660517870 (or 660517868 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 18494500052 in words is "eighteen billion, four hundred ninety-four million, five hundred thousand, fifty-two".