19471363768 has 16 divisors (see below), whose sum is σ = 36516223080. Its totient is φ = 9733704288.

The previous prime is 19471363753. The next prime is 19471363781. The reversal of 19471363768 is 86736317491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204930 + ... + 284497.

Almost surely, 2^19471363768 is an apocalyptic number.

It is an amenable number.

19471363768 is a deficient number, since it is larger than the sum of its proper divisors (17044859312).

19471363768 is a wasteful number, since it uses less digits than its factorization.

19471363768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494406 (or 494402 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 55.

The spelling of 19471363768 in words is "nineteen billion, four hundred seventy-one million, three hundred sixty-three thousand, seven hundred sixty-eight".