19821982032 has 60 divisors (see below), whose sum is σ = 55487219424. Its totient is φ = 6605755200.

The previous prime is 19821982007. The next prime is 19821982069. The reversal of 19821982032 is 23028912891.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 699043 + ... + 726845.

Almost surely, 2^19821982032 is an apocalyptic number.

19821982032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19821982032 is an abundant number, since it is smaller than the sum of its proper divisors (35665237392).

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

19821982032 is a wasteful number, since it uses less digits than its factorization.

19821982032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32768 (or 32759 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 19821982032 in words is "nineteen billion, eight hundred twenty-one million, nine hundred eighty-two thousand, thirty-two".