19982563488 has 96 divisors (see below), whose sum is σ = 59238083520. Its totient is φ = 6551642880.

The previous prime is 19982563483. The next prime is 19982563501. The reversal of 19982563488 is 88436528991.

19982563488 is a `hidden beast` number, since 1 + 9 + 98 + 2 + 5 + 63 + 488 = 666.

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

It is a super-2 number, since 2×19982563488² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19982563483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136870 + ... + 242277.

It is an arithmetic number, because the mean of its divisors is an integer number (617063370).

Almost surely, 2^19982563488 is an apocalyptic number.

19982563488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19982563488 is an abundant number, since it is smaller than the sum of its proper divisors (39255520032).

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

19982563488 is a wasteful number, since it uses less digits than its factorization.

19982563488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379227 (or 379213 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 63.

The spelling of 19982563488 in words is "nineteen billion, nine hundred eighty-two million, five hundred sixty-three thousand, four hundred eighty-eight".