19968113632 has 12 divisors (see below), whose sum is σ = 39312223776. Its totient is φ = 9984056800.

The previous prime is 19968113629. The next prime is 19968113653. The reversal of 19968113632 is 23631186991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312001744 + ... + 312001807.

It is an arithmetic number, because the mean of its divisors is an integer number (3276018648).

Almost surely, 2^19968113632 is an apocalyptic number.

It is an amenable number.

19968113632 is a deficient number, since it is larger than the sum of its proper divisors (19344110144).

19968113632 is an equidigital number, since it uses as much as digits as its factorization.

19968113632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624003561 (or 624003553 counting only the distinct ones).

The product of its digits is 419904, while the sum is 49.

The spelling of 19968113632 in words is "nineteen billion, nine hundred sixty-eight million, one hundred thirteen thousand, six hundred thirty-two".