19793325808 has 10 divisors (see below), whose sum is σ = 38349568784. Its totient is φ = 9896662896.

The previous prime is 19793325707. The next prime is 19793325821. The reversal of 19793325808 is 80852339791.

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, 618541416 + ... + 618541447.

Almost surely, 2^19793325808 is an apocalyptic number.

It is an amenable number.

19793325808 is a deficient number, since it is larger than the sum of its proper divisors (18556242976).

19793325808 is a wasteful number, since it uses less digits than its factorization.

19793325808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237082871 (or 1237082865 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 19793325808 in words is "nineteen billion, seven hundred ninety-three million, three hundred twenty-five thousand, eight hundred eight".