19962974080 has 256 divisors, whose sum is σ = 56729756160. Its totient is φ = 6574694400.

The previous prime is 19962974077. The next prime is 19962974111. The reversal of 19962974080 is 8047926991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13757355 + ... + 13758805.

It is an arithmetic number, because the mean of its divisors is an integer number (221600610).

Almost surely, 2^19962974080 is an apocalyptic number.

19962974080 is a gapful number since it is divisible by the number (10) 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 19962974080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28364878080).

19962974080 is an abundant number, since it is smaller than the sum of its proper divisors (36766782080).

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

19962974080 is a wasteful number, since it uses less digits than its factorization.

19962974080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597 (or 1585 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 19962974080 in words is "nineteen billion, nine hundred sixty-two million, nine hundred seventy-four thousand, eighty".