28417943268 has 72 divisors (see below), whose sum is σ = 84392695296. Its totient is φ = 7949073600.

The previous prime is 28417943251. The next prime is 28417943293. The reversal of 28417943268 is 86234971482.

28417943268 is a `hidden beast` number, since 2 + 84 + 1 + 79 + 432 + 68 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2754948 + ... + 2765243.

It is an arithmetic number, because the mean of its divisors is an integer number (1172120768).

Almost surely, 2^28417943268 is an apocalyptic number.

It is an amenable number.

28417943268 is an abundant number, since it is smaller than the sum of its proper divisors (55974752028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28417943268 is a wasteful number, since it uses less digits than its factorization.

28417943268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5520225 (or 5520220 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 28417943268 in words is "twenty-eight billion, four hundred seventeen million, nine hundred forty-three thousand, two hundred sixty-eight".