28956009207176 has 16 divisors (see below), whose sum is σ = 54494348186700. Its totient is φ = 14424183024064.

The previous prime is 28956009207157. The next prime is 28956009207179. The reversal of 28956009207176 is 67170290065982.

It can be written as a sum of positive squares in 2 ways, for example, as 27794300320900 + 1161708886276 = 5272030^2 + 1077826^2 .

It is a super-2 number, since 2×28956009207176² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28956009207179) 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, 6727695155 + ... + 6727699458.

Almost surely, 2^{28956009207176} is an apocalyptic number.

It is an amenable number.

28956009207176 is a deficient number, since it is larger than the sum of its proper divisors (25538338979524).

28956009207176 is a wasteful number, since it uses less digits than its factorization.

28956009207176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13455394888 (or 13455394884 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 62.

The spelling of 28956009207176 in words is "twenty-eight trillion, nine hundred fifty-six billion, nine million, two hundred seven thousand, one hundred seventy-six".