19328623388 has 12 divisors (see below), whose sum is σ = 33826852920. Its totient is φ = 9663808272.

The previous prime is 19328623291. The next prime is 19328623393. The reversal of 19328623388 is 88332682391.

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, 31631 + ... + 199142.

It is an arithmetic number, because the mean of its divisors is an integer number (2818904410).

Almost surely, 2^19328623388 is an apocalyptic number.

It is an amenable number.

19328623388 is a deficient number, since it is larger than the sum of its proper divisors (14498229532).

19328623388 is a wasteful number, since it uses less digits than its factorization.

19328623388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251716 (or 251714 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 53.

The spelling of 19328623388 in words is "nineteen billion, three hundred twenty-eight million, six hundred twenty-three thousand, three hundred eighty-eight".