19597253104 has 80 divisors (see below), whose sum is σ = 45557084160. Its totient is φ = 8047630080.

The previous prime is 19597253099. The next prime is 19597253111. The reversal of 19597253104 is 40135279591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16417 + ... + 198655.

It is an arithmetic number, because the mean of its divisors is an integer number (569463552).

Almost surely, 2^19597253104 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 19597253104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22778542080).

19597253104 is an abundant number, since it is smaller than the sum of its proper divisors (25959831056).

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

19597253104 is a wasteful number, since it uses less digits than its factorization.

19597253104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182318 (or 182312 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 46.

The spelling of 19597253104 in words is "nineteen billion, five hundred ninety-seven million, two hundred fifty-three thousand, one hundred four".