19866032982 has 24 divisors (see below), whose sum is σ = 43063524504. Its totient is φ = 6618864384.

The previous prime is 19866032971. The next prime is 19866032987. The reversal of 19866032982 is 28923066891.

19866032982 is a `hidden beast` number, since 1 + 9 + 8 + 6 + 603 + 29 + 8 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19866032987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223128 + ... + 299195.

It is an arithmetic number, because the mean of its divisors is an integer number (1794313521).

Almost surely, 2^19866032982 is an apocalyptic number.

19866032982 is an abundant number, since it is smaller than the sum of its proper divisors (23197491522).

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

19866032982 is a wasteful number, since it uses less digits than its factorization.

19866032982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524444 (or 524441 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 19866032982 in words is "nineteen billion, eight hundred sixty-six million, thirty-two thousand, nine hundred eighty-two".