19957236952 has 8 divisors (see below), whose sum is σ = 37419819300. Its totient is φ = 9978618472.

The previous prime is 19957236941. The next prime is 19957236983. The reversal of 19957236952 is 25963275991.

It is a tau number, because it is divible by the number of its divisors (8).

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, 1247327302 + ... + 1247327317.

Almost surely, 2^19957236952 is an apocalyptic number.

It is an amenable number.

19957236952 is a deficient number, since it is larger than the sum of its proper divisors (17462582348).

19957236952 is a wasteful number, since it uses less digits than its factorization.

19957236952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494654625 (or 2494654621 counting only the distinct ones).

The product of its digits is 9185400, while the sum is 58.

The spelling of 19957236952 in words is "nineteen billion, nine hundred fifty-seven million, two hundred thirty-six thousand, nine hundred fifty-two".