28260971013 has 16 divisors (see below), whose sum is σ = 43270387200. Its totient is φ = 16226394480.

The previous prime is 28260970981. The next prime is 28260971017. The reversal of 28260971013 is 31017906282.

It is not a de Polignac number, because 28260971013 - 2⁵ = 28260970981 is a prime.

It is a super-3 number, since 3×28260971013³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28260971017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22536033 + ... + 22537286.

It is an arithmetic number, because the mean of its divisors is an integer number (2704399200).

Almost surely, 2^28260971013 is an apocalyptic number.

It is an amenable number.

28260971013 is a deficient number, since it is larger than the sum of its proper divisors (15009416187).

28260971013 is a wasteful number, since it uses less digits than its factorization.

28260971013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45073352.

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 28260971013 in words is "twenty-eight billion, two hundred sixty million, nine hundred seventy-one thousand, thirteen".