19533638796 has 48 divisors (see below), whose sum is σ = 52119029760. Its totient is φ = 5577897600.

The previous prime is 19533638791. The next prime is 19533638827. The reversal of 19533638796 is 69783633591.

It is a super-2 number, since 2×19533638796² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19533638791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86725 + ... + 215843.

It is an arithmetic number, because the mean of its divisors is an integer number (1085813120).

Almost surely, 2^19533638796 is an apocalyptic number.

It is an amenable number.

19533638796 is an abundant number, since it is smaller than the sum of its proper divisors (32585390964).

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

19533638796 is a wasteful number, since it uses less digits than its factorization.

19533638796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130934 (or 130932 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 60.

The spelling of 19533638796 in words is "nineteen billion, five hundred thirty-three million, six hundred thirty-eight thousand, seven hundred ninety-six".