13393279128 has 16 divisors (see below), whose sum is σ = 33483197880. Its totient is φ = 4464426368.

The previous prime is 13393279127. The next prime is 13393279139. The reversal of 13393279128 is 82197239331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13393279127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279026625 + ... + 279026672.

Almost surely, 2^13393279128 is an apocalyptic number.

It is an amenable number.

13393279128 is an abundant number, since it is smaller than the sum of its proper divisors (20089918752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13393279128 is a wasteful number, since it uses less digits than its factorization.

13393279128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558053306 (or 558053302 counting only the distinct ones).

The product of its digits is 489888, while the sum is 48.

The spelling of 13393279128 in words is "thirteen billion, three hundred ninety-three million, two hundred seventy-nine thousand, one hundred twenty-eight".