19403889092 has 12 divisors (see below), whose sum is σ = 38807778240. Its totient is φ = 8315952456.

The previous prime is 19403889059. The next prime is 19403889163. The reversal of 19403889092 is 29098830491.

19403889092 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346497992 + ... + 346498047.

It is an arithmetic number, because the mean of its divisors is an integer number (3233981520).

Almost surely, 2^19403889092 is an apocalyptic number.

It is an amenable number.

19403889092 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19403889092 is a wasteful number, since it uses less digits than its factorization.

19403889092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692996050 (or 692996048 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 53.

The spelling of 19403889092 in words is "nineteen billion, four hundred three million, eight hundred eighty-nine thousand, ninety-two".