19882245944 has 32 divisors (see below), whose sum is σ = 40685725440. Its totient is φ = 9033496800.

The previous prime is 19882245941. The next prime is 19882245949. The reversal of 19882245944 is 44954228891.

It is a super-2 number, since 2×19882245944² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19882245944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19882245941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162299 + ... + 257109.

It is an arithmetic number, because the mean of its divisors is an integer number (1271428920).

Almost surely, 2^19882245944 is an apocalyptic number.

It is an amenable number.

19882245944 is an abundant number, since it is smaller than the sum of its proper divisors (20803479496).

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

19882245944 is a wasteful number, since it uses less digits than its factorization.

19882245944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97211 (or 97207 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 56.

The spelling of 19882245944 in words is "nineteen billion, eight hundred eighty-two million, two hundred forty-five thousand, nine hundred forty-four".