19197898960 has 40 divisors (see below), whose sum is σ = 44868842496. Its totient is φ = 7638948480.

The previous prime is 19197898949. The next prime is 19197898987. The reversal of 19197898960 is 6989879191.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612924 + ... + 643483.

Almost surely, 2^19197898960 is an apocalyptic number.

19197898960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19197898960 is an abundant number, since it is smaller than the sum of its proper divisors (25670943536).

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

19197898960 is a wasteful number, since it uses less digits than its factorization.

19197898960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256611 (or 1256605 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 67.

The spelling of 19197898960 in words is "nineteen billion, one hundred ninety-seven million, eight hundred ninety-eight thousand, nine hundred sixty".