19807996192 has 12 divisors (see below), whose sum is σ = 38996992566. Its totient is φ = 9903998080.

The previous prime is 19807996177. The next prime is 19807996207. The reversal of 19807996192 is 29169970891.

It is an interprime number because it is at equal distance from previous prime (19807996177) and next prime (19807996207).

It can be written as a sum of positive squares in only one way, i.e., 10289262096 + 9518734096 = 101436^2 + 97564^2 .

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 19807996192.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309499909 + ... + 309499972.

Almost surely, 2^19807996192 is an apocalyptic number.

It is an amenable number.

19807996192 is a deficient number, since it is larger than the sum of its proper divisors (19188996374).

19807996192 is an equidigital number, since it uses as much as digits as its factorization.

19807996192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618999891 (or 618999883 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 61.

The spelling of 19807996192 in words is "nineteen billion, eight hundred seven million, nine hundred ninety-six thousand, one hundred ninety-two".