19747325992 has 32 divisors (see below), whose sum is σ = 37703793600. Its totient is φ = 9694137600.

The previous prime is 19747325951. The next prime is 19747325999. The reversal of 19747325992 is 29952374791.

It is not an unprimeable number, because it can be changed into a prime (19747325999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64759 + ... + 209017.

It is an arithmetic number, because the mean of its divisors is an integer number (1178243550).

Almost surely, 2^19747325992 is an apocalyptic number.

It is an amenable number.

19747325992 is a deficient number, since it is larger than the sum of its proper divisors (17956467608).

19747325992 is a wasteful number, since it uses less digits than its factorization.

19747325992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144577 (or 144573 counting only the distinct ones).

The product of its digits is 8573040, while the sum is 58.

The spelling of 19747325992 in words is "nineteen billion, seven hundred forty-seven million, three hundred twenty-five thousand, nine hundred ninety-two".