19712043792 has 480 divisors, whose sum is σ = 68853628800. Its totient is φ = 5377010688.

The previous prime is 19712043787. The next prime is 19712043839. The reversal of 19712043792 is 29734021791.

19712043792 is a `hidden beast` number, since 1 + 9 + 7 + 120 + 437 + 92 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 100061038 + ... + 100061234.

It is an arithmetic number, because the mean of its divisors is an integer number (143445060).

Almost surely, 2^19712043792 is an apocalyptic number.

19712043792 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 19712043792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34426814400).

19712043792 is an abundant number, since it is smaller than the sum of its proper divisors (49141585008).

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

19712043792 is a wasteful number, since it uses less digits than its factorization.

19712043792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 19712043792 in words is "nineteen billion, seven hundred twelve million, forty-three thousand, seven hundred ninety-two".