19974267952 has 10 divisors (see below), whose sum is σ = 38700144188. Its totient is φ = 9987133968.

The previous prime is 19974267941. The next prime is 19974267967. The reversal of 19974267952 is 25976247991.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624195858 + ... + 624195889.

Almost surely, 2^19974267952 is an apocalyptic number.

It is an amenable number.

19974267952 is a deficient number, since it is larger than the sum of its proper divisors (18725876236).

19974267952 is a wasteful number, since it uses less digits than its factorization.

19974267952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248391755 (or 1248391749 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 61.

The spelling of 19974267952 in words is "nineteen billion, nine hundred seventy-four million, two hundred sixty-seven thousand, nine hundred fifty-two".