19953132756 has 24 divisors (see below), whose sum is σ = 46577731200. Its totient is φ = 6648126912.

The previous prime is 19953132743. The next prime is 19953132761. The reversal of 19953132756 is 65723135991.

It is a junction number, because it is equal to n+sod(n) for n = 19953132699 and 19953132708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336081 + ... + 390968.

It is an arithmetic number, because the mean of its divisors is an integer number (1940738800).

Almost surely, 2^19953132756 is an apocalyptic number.

It is an amenable number.

19953132756 is an abundant number, since it is smaller than the sum of its proper divisors (26624598444).

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

19953132756 is a wasteful number, since it uses less digits than its factorization.

19953132756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729343 (or 729341 counting only the distinct ones).

The product of its digits is 1530900, while the sum is 51.

The spelling of 19953132756 in words is "nineteen billion, nine hundred fifty-three million, one hundred thirty-two thousand, seven hundred fifty-six".