19479313194 has 16 divisors (see below), whose sum is σ = 42500319840. Its totient is φ = 5902822160.

The previous prime is 19479313163. The next prime is 19479313223. The reversal of 19479313194 is 49131397491.

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, 147570489 + ... + 147570620.

It is an arithmetic number, because the mean of its divisors is an integer number (2656269990).

Almost surely, 2^19479313194 is an apocalyptic number.

19479313194 is an abundant number, since it is smaller than the sum of its proper divisors (23021006646).

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

19479313194 is a wasteful number, since it uses less digits than its factorization.

19479313194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295141125.

The product of its digits is 734832, while the sum is 51.

The spelling of 19479313194 in words is "nineteen billion, four hundred seventy-nine million, three hundred thirteen thousand, one hundred ninety-four".