19797228174 has 16 divisors (see below), whose sum is σ = 40039338960. Its totient is φ = 6524928960.

The previous prime is 19797228151. The next prime is 19797228181. The reversal of 19797228174 is 47182279791.

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, 18536197 + ... + 18537264.

It is an arithmetic number, because the mean of its divisors is an integer number (2502458685).

Almost surely, 2^19797228174 is an apocalyptic number.

19797228174 is an abundant number, since it is smaller than the sum of its proper divisors (20242110786).

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

19797228174 is a wasteful number, since it uses less digits than its factorization.

19797228174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37073555.

The product of its digits is 3556224, while the sum is 57.

The spelling of 19797228174 in words is "nineteen billion, seven hundred ninety-seven million, two hundred twenty-eight thousand, one hundred seventy-four".