19374195426 has 32 divisors (see below), whose sum is σ = 40007582208. Its totient is φ = 6248296320.

The previous prime is 19374195397. The next prime is 19374195461. The reversal of 19374195426 is 62459147391.

It is a happy 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, 1042996 + ... + 1061408.

It is an arithmetic number, because the mean of its divisors is an integer number (1250236944).

Almost surely, 2^19374195426 is an apocalyptic number.

19374195426 is an abundant number, since it is smaller than the sum of its proper divisors (20633386782).

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

19374195426 is a wasteful number, since it uses less digits than its factorization.

19374195426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24106.

The product of its digits is 1632960, while the sum is 51.

The spelling of 19374195426 in words is "nineteen billion, three hundred seventy-four million, one hundred ninety-five thousand, four hundred twenty-six".