28088136052 has 12 divisors (see below), whose sum is σ = 50200073280. Its totient is φ = 13745257976.

The previous prime is 28088136047. The next prime is 28088136053. The reversal of 28088136052 is 25063188082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28088136053) 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, 74702302 + ... + 74702677.

It is an arithmetic number, because the mean of its divisors is an integer number (4183339440).

Almost surely, 2^28088136052 is an apocalyptic number.

It is an amenable number.

28088136052 is a deficient number, since it is larger than the sum of its proper divisors (22111937228).

28088136052 is a wasteful number, since it uses less digits than its factorization.

28088136052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149405030 (or 149405028 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 28088136052 in words is "twenty-eight billion, eighty-eight million, one hundred thirty-six thousand, fifty-two".