19593128396 has 12 divisors (see below), whose sum is σ = 36092605080. Its totient is φ = 9280955520.

The previous prime is 19593128311. The next prime is 19593128419. The reversal of 19593128396 is 69382139591.

It is a happy 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, 128902085 + ... + 128902236.

It is an arithmetic number, because the mean of its divisors is an integer number (3007717090).

Almost surely, 2^19593128396 is an apocalyptic number.

It is an amenable number.

19593128396 is a deficient number, since it is larger than the sum of its proper divisors (16499476684).

19593128396 is a wasteful number, since it uses less digits than its factorization.

19593128396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257804344 (or 257804342 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 56.

The spelling of 19593128396 in words is "nineteen billion, five hundred ninety-three million, one hundred twenty-eight thousand, three hundred ninety-six".