19696315028 has 24 divisors (see below), whose sum is σ = 37136024352. Its totient is φ = 9086677344.

The previous prime is 19696315019. The next prime is 19696315061. The reversal of 19696315028 is 82051369691.

It is a happy number.

It is a Smith number, since the sum of its digits (50) 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 7 ways as a sum of consecutive naturals, for example, 41351 + ... + 202737.

It is an arithmetic number, because the mean of its divisors is an integer number (1547334348).

Almost surely, 2^19696315028 is an apocalyptic number.

It is an amenable number.

19696315028 is a deficient number, since it is larger than the sum of its proper divisors (17439709324).

19696315028 is a wasteful number, since it uses less digits than its factorization.

19696315028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163751 (or 163749 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 19696315028 in words is "nineteen billion, six hundred ninety-six million, three hundred fifteen thousand, twenty-eight".