13628028136 has 16 divisors (see below), whose sum is σ = 25624944900. Its totient is φ = 6794709504.

The previous prime is 13628028109. The next prime is 13628028137. The reversal of 13628028136 is 63182082631.

It can be written as a sum of positive squares in 2 ways, for example, as 12309902500 + 1318125636 = 110950^2 + 36306^2 .

It is not an unprimeable number, because it can be changed into a prime (13628028137) 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, 2410071 + ... + 2415718.

Almost surely, 2^13628028136 is an apocalyptic number.

It is an amenable number.

13628028136 is a deficient number, since it is larger than the sum of its proper divisors (11996916764).

13628028136 is a wasteful number, since it uses less digits than its factorization.

13628028136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4826148 (or 4826144 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 13628028136 in words is "thirteen billion, six hundred twenty-eight million, twenty-eight thousand, one hundred thirty-six".