19959472392 has 16 divisors (see below), whose sum is σ = 49898681040. Its totient is φ = 6653157456.

The previous prime is 19959472369. The next prime is 19959472457. The reversal of 19959472392 is 29327495991.

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, 415822318 + ... + 415822365.

It is an arithmetic number, because the mean of its divisors is an integer number (3118667565).

Almost surely, 2^19959472392 is an apocalyptic number.

19959472392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19959472392 is an abundant number, since it is smaller than the sum of its proper divisors (29939208648).

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

19959472392 is a wasteful number, since it uses less digits than its factorization.

19959472392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831644692 (or 831644688 counting only the distinct ones).

The product of its digits is 11022480, while the sum is 60.

The spelling of 19959472392 in words is "nineteen billion, nine hundred fifty-nine million, four hundred seventy-two thousand, three hundred ninety-two".