18696890304 has 84 divisors (see below), whose sum is σ = 53640593760. Its totient is φ = 6226560000.

The previous prime is 18696890281. The next prime is 18696890327. The reversal of 18696890304 is 40309869681.

It is an interprime number because it is at equal distance from previous prime (18696890281) and next prime (18696890327).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 635929 + ... + 664679.

Almost surely, 2^18696890304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18696890304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26820296880).

18696890304 is an abundant number, since it is smaller than the sum of its proper divisors (34943703456).

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

18696890304 is a wasteful number, since it uses less digits than its factorization.

18696890304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29898 (or 29885 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 18696890304 in words is "eighteen billion, six hundred ninety-six million, eight hundred ninety thousand, three hundred four".