13156393928 has 32 divisors (see below), whose sum is σ = 25171344000. Its totient is φ = 6445308480.

The previous prime is 13156393897. The next prime is 13156393951. The reversal of 13156393928 is 82939365131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3338 + ... + 162246.

It is an arithmetic number, because the mean of its divisors is an integer number (786604500).

Almost surely, 2^13156393928 is an apocalyptic number.

It is an amenable number.

13156393928 is a deficient number, since it is larger than the sum of its proper divisors (12014950072).

13156393928 is a wasteful number, since it uses less digits than its factorization.

13156393928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159125 (or 159121 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 50.

The spelling of 13156393928 in words is "thirteen billion, one hundred fifty-six million, three hundred ninety-three thousand, nine hundred twenty-eight".