19924363008 has 216 divisors, whose sum is σ = 62961291120. Its totient is φ = 6009569280.

The previous prime is 19924363007. The next prime is 19924363013. The reversal of 19924363008 is 80036342991.

It is a happy number.

19924363008 is a `hidden beast` number, since 1 + 9 + 9 + 2 + 4 + 3 + 630 + 0 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19924363007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5802060 + ... + 5805492.

Almost surely, 2^19924363008 is an apocalyptic number.

19924363008 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 19924363008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31480645560).

19924363008 is an abundant number, since it is smaller than the sum of its proper divisors (43036928112).

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

19924363008 is a wasteful number, since it uses less digits than its factorization.

19924363008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695 (or 3678 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 19924363008 in words is "nineteen billion, nine hundred twenty-four million, three hundred sixty-three thousand, eight".