19694860080 has 120 divisors (see below), whose sum is σ = 71022119472. Its totient is φ = 4501679616.

The previous prime is 19694860079. The next prime is 19694860177. The reversal of 19694860080 is 8006849691.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 825607 + ... + 849126.

Almost surely, 2^19694860080 is an apocalyptic number.

19694860080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19694860080 is an abundant number, since it is smaller than the sum of its proper divisors (51327259392).

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

19694860080 is a wasteful number, since it uses less digits than its factorization.

19694860080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674763 (or 1674750 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 19694860080 in words is "nineteen billion, six hundred ninety-four million, eight hundred sixty thousand, eighty".