18190085496 has 64 divisors (see below), whose sum is σ = 49844592000. Its totient is φ = 5486006400.

The previous prime is 18190085491. The next prime is 18190085497. The reversal of 18190085496 is 69458009181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18190085491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107571 + ... + 218978.

It is an arithmetic number, because the mean of its divisors is an integer number (778821750).

Almost surely, 2^18190085496 is an apocalyptic number.

It is an amenable number.

18190085496 is an abundant number, since it is smaller than the sum of its proper divisors (31654506504).

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

18190085496 is a wasteful number, since it uses less digits than its factorization.

18190085496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326780 (or 326776 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 51.

The spelling of 18190085496 in words is "eighteen billion, one hundred ninety million, eighty-five thousand, four hundred ninety-six".