19639072075 has 12 divisors (see below), whose sum is σ = 27831370960. Its totient is φ = 13466792160.

The previous prime is 19639072021. The next prime is 19639072099. The reversal of 19639072075 is 57027093691.

It is not a de Polignac number, because 19639072075 - 2²³ = 19630683467 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56111460 + ... + 56111809.

Almost surely, 2^19639072075 is an apocalyptic number.

19639072075 is a deficient number, since it is larger than the sum of its proper divisors (8192298885).

19639072075 is a wasteful number, since it uses less digits than its factorization.

19639072075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112223286 (or 112223281 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 49.

The spelling of 19639072075 in words is "nineteen billion, six hundred thirty-nine million, seventy-two thousand, seventy-five".