19925872992 has 240 divisors, whose sum is σ = 64749640032. Its totient is φ = 5979156480.

The previous prime is 19925872991. The next prime is 19925873017. The reversal of 19925872992 is 29927852991.

19925872992 is a `hidden beast` number, since 1 + 99 + 258 + 7 + 299 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19925872991) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1003642 + ... + 1023302.

Almost surely, 2^19925872992 is an apocalyptic number.

19925872992 is a gapful number since it is divisible by the number (12) 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 19925872992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32374820016).

19925872992 is an abundant number, since it is smaller than the sum of its proper divisors (44823767040).

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

19925872992 is a wasteful number, since it uses less digits than its factorization.

19925872992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19723 (or 19706 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 63.

The spelling of 19925872992 in words is "nineteen billion, nine hundred twenty-five million, eight hundred seventy-two thousand, nine hundred ninety-two".