19389674552 has 16 divisors (see below), whose sum is σ = 37201120440. Its totient is φ = 9469375776.

The previous prime is 19389674539. The next prime is 19389674569. The reversal of 19389674552 is 25547698391.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 19389674491 and 19389674500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28182323 + ... + 28183010.

Almost surely, 2^19389674552 is an apocalyptic number.

It is an amenable number.

19389674552 is a deficient number, since it is larger than the sum of its proper divisors (17811445888).

19389674552 is a wasteful number, since it uses less digits than its factorization.

19389674552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56365382 (or 56365378 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 59.

The spelling of 19389674552 in words is "nineteen billion, three hundred eighty-nine million, six hundred seventy-four thousand, five hundred fifty-two".