19893025088 has 56 divisors (see below), whose sum is σ = 40487437440. Its totient is φ = 9693964800.

The previous prime is 19893025073. The next prime is 19893025093. The reversal of 19893025088 is 88052039891.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492773 + ... + 531611.

Almost surely, 2^19893025088 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 19893025088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20243718720).

19893025088 is an abundant number, since it is smaller than the sum of its proper divisors (20594412352).

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

19893025088 is a wasteful number, since it uses less digits than its factorization.

19893025088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39055 (or 39045 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 53.

The spelling of 19893025088 in words is "nineteen billion, eight hundred ninety-three million, twenty-five thousand, eighty-eight".