19349740194 has 32 divisors (see below), whose sum is σ = 39665894400. Its totient is φ = 6289347792.

The previous prime is 19349740169. The next prime is 19349740253. The reversal of 19349740194 is 49104794391.

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, 91939 + ... + 217145.

It is an arithmetic number, because the mean of its divisors is an integer number (1239559200).

Almost surely, 2^19349740194 is an apocalyptic number.

19349740194 is an abundant number, since it is smaller than the sum of its proper divisors (20316154206).

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

19349740194 is a wasteful number, since it uses less digits than its factorization.

19349740194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125854.

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 19349740194 in words is "nineteen billion, three hundred forty-nine million, seven hundred forty thousand, one hundred ninety-four".