19631963932 has 24 divisors (see below), whose sum is σ = 39405690464. Its totient is φ = 8383321152.

The previous prime is 19631963899. The next prime is 19631963947. The reversal of 19631963932 is 23936913691.

It is a self number, because there is not a number n which added to its sum of digits gives 19631963932.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1257843 + ... + 1273354.

Almost surely, 2^19631963932 is an apocalyptic number.

It is an amenable number.

19631963932 is an abundant number, since it is smaller than the sum of its proper divisors (19773726532).

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

19631963932 is a wasteful number, since it uses less digits than its factorization.

19631963932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531485 (or 2531483 counting only the distinct ones).

The product of its digits is 1417176, while the sum is 52.

The spelling of 19631963932 in words is "nineteen billion, six hundred thirty-one million, nine hundred sixty-three thousand, nine hundred thirty-two".