19049198972 has 12 divisors (see below), whose sum is σ = 35297045280. Its totient is φ = 8964328896.

The previous prime is 19049198953. The next prime is 19049199019. The reversal of 19049198972 is 27989194091.

It is a congruent 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, 140067572 + ... + 140067707.

It is an arithmetic number, because the mean of its divisors is an integer number (2941420440).

Almost surely, 2^19049198972 is an apocalyptic number.

It is an amenable number.

19049198972 is a deficient number, since it is larger than the sum of its proper divisors (16247846308).

19049198972 is a wasteful number, since it uses less digits than its factorization.

19049198972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280135300 (or 280135298 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 59.

The spelling of 19049198972 in words is "nineteen billion, forty-nine million, one hundred ninety-eight thousand, nine hundred seventy-two".