28888858858730 has 16 divisors (see below), whose sum is σ = 55999941787944. Its totient is φ = 10666655578560.

The previous prime is 28888858858711. The next prime is 28888858858763. The reversal of 28888858858730 is 3785885888882.

It can be written as a sum of positive squares in 4 ways, for example, as 14382350853649 + 14506508005081 = 3792407^2 + 3808741^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111110995481 + ... + 111110995740.

Almost surely, 2^{28888858858730} is an apocalyptic number.

28888858858730 is a deficient number, since it is larger than the sum of its proper divisors (27111082929214).

28888858858730 is a wasteful number, since it uses less digits than its factorization.

28888858858730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222221991241.

The product of its (nonzero) digits is 17616076800, while the sum is 86.

The spelling of 28888858858730 in words is "twenty-eight trillion, eight hundred eighty-eight billion, eight hundred fifty-eight million, eight hundred fifty-eight thousand, seven hundred thirty".