19432223568 has 160 divisors (see below), whose sum is σ = 57342996480. Its totient is φ = 6297056640.

The previous prime is 19432223563. The next prime is 19432223617. The reversal of 19432223568 is 86532223491.

19432223568 is a `hidden beast` number, since 1 + 9 + 43 + 22 + 23 + 568 = 666.

It is a super-2 number, since 2×19432223568² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19432223563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4140103 + ... + 4144793.

It is an arithmetic number, because the mean of its divisors is an integer number (358393728).

Almost surely, 2^19432223568 is an apocalyptic number.

19432223568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19432223568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28671498240).

19432223568 is an abundant number, since it is smaller than the sum of its proper divisors (37910772912).

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

19432223568 is a wasteful number, since it uses less digits than its factorization.

19432223568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4974 (or 4962 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 19432223568 in words is "nineteen billion, four hundred thirty-two million, two hundred twenty-three thousand, five hundred sixty-eight".