19719682080 has 96 divisors (see below), whose sum is σ = 70990867584. Its totient is φ = 4507355136.

The previous prime is 19719682043. The next prime is 19719682111. The reversal of 19719682080 is 8028691791.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×19719682080² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2931117 + ... + 2937836.

It is an arithmetic number, because the mean of its divisors is an integer number (739488204).

Almost surely, 2^19719682080 is an apocalyptic number.

19719682080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19719682080 is an abundant number, since it is smaller than the sum of its proper divisors (51271185504).

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

19719682080 is a wasteful number, since it uses less digits than its factorization.

19719682080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5868978 (or 5868970 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 51.

The spelling of 19719682080 in words is "nineteen billion, seven hundred nineteen million, six hundred eighty-two thousand, eighty".