28163930113 has 12 divisors (see below), whose sum is σ = 31112636800. Its totient is φ = 25474889880.

The previous prime is 28163930111. The next prime is 28163930131. The reversal of 28163930113 is 31103936182.

It is not a de Polignac number, because 28163930113 - 2¹ = 28163930111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28163930111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 560745 + ... + 608902.

Almost surely, 2^28163930113 is an apocalyptic number.

It is an amenable number.

28163930113 is a deficient number, since it is larger than the sum of its proper divisors (2948706687).

28163930113 is a wasteful number, since it uses less digits than its factorization.

28163930113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169868 (or 1169857 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 28163930113 in words is "twenty-eight billion, one hundred sixty-three million, nine hundred thirty thousand, one hundred thirteen".