19682871872 has 28 divisors (see below), whose sum is σ = 39196249776. Its totient is φ = 9806651520.

The previous prime is 19682871827. The next prime is 19682871877. The reversal of 19682871872 is 27817828691.

It is not an unprimeable number, because it can be changed into a prime (19682871877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525254 + ... + 561477.

Almost surely, 2^19682871872 is an apocalyptic number.

It is an amenable number.

19682871872 is a deficient number, since it is larger than the sum of its proper divisors (19513377904).

19682871872 is a wasteful number, since it uses less digits than its factorization.

19682871872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087026 (or 1087016 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 59.

The spelling of 19682871872 in words is "nineteen billion, six hundred eighty-two million, eight hundred seventy-one thousand, eight hundred seventy-two".