19634568960 has 72 divisors (see below), whose sum is σ = 62707916880. Its totient is φ = 5235884032.

The previous prime is 19634568959. The next prime is 19634568971. The reversal of 19634568960 is 6986543691.

It is a self number, because there is not a number n which added to its sum of digits gives 19634568960.

It is a congruent number.

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, 2552745 + ... + 2560424.

It is an arithmetic number, because the mean of its divisors is an integer number (870943290).

Almost surely, 2^19634568960 is an apocalyptic number.

19634568960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19634568960 is an abundant number, since it is smaller than the sum of its proper divisors (43073347920).

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

19634568960 is an equidigital number, since it uses as much as digits as its factorization.

19634568960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113193 (or 5113179 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 57.

The spelling of 19634568960 in words is "nineteen billion, six hundred thirty-four million, five hundred sixty-eight thousand, nine hundred sixty".