19924270848 has 216 divisors, whose sum is σ = 59515327872. Its totient is φ = 6406170624.

The previous prime is 19924270819. The next prime is 19924270871. The reversal of 19924270848 is 84807242991.

It is a junction number, because it is equal to n+sod(n) for n = 19924270794 and 19924270803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8221765 + ... + 8224187.

Almost surely, 2^19924270848 is an apocalyptic number.

19924270848 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 19924270848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29757663936).

19924270848 is an abundant number, since it is smaller than the sum of its proper divisors (39591057024).

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

19924270848 is a wasteful number, since it uses less digits than its factorization.

19924270848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571 (or 2554 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 19924270848 in words is "nineteen billion, nine hundred twenty-four million, two hundred seventy thousand, eight hundred forty-eight".