19307472392 has 32 divisors (see below), whose sum is σ = 38999717400. Its totient is φ = 8908061184.

The previous prime is 19307472329. The next prime is 19307472409. The reversal of 19307472392 is 29327470391.

It can be written as a sum of positive squares in 4 ways, for example, as 11943429796 + 7364042596 = 109286^2 + 85814^2 .

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, 285284 + ... + 346412.

Almost surely, 2^19307472392 is an apocalyptic number.

It is an amenable number.

19307472392 is an abundant number, since it is smaller than the sum of its proper divisors (19692245008).

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

19307472392 is a wasteful number, since it uses less digits than its factorization.

19307472392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64185 (or 64181 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 47.

The spelling of 19307472392 in words is "nineteen billion, three hundred seven million, four hundred seventy-two thousand, three hundred ninety-two".