28083187852 has 24 divisors (see below), whose sum is σ = 50869526400. Its totient is φ = 13549595136.

The previous prime is 28083187787. The next prime is 28083187871. The reversal of 28083187852 is 25878138082.

It is a self number, because there is not a number n which added to its sum of digits gives 28083187852.

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, 135228 + ... + 272860.

It is an arithmetic number, because the mean of its divisors is an integer number (2119563600).

Almost surely, 2^28083187852 is an apocalyptic number.

It is an amenable number.

28083187852 is a deficient number, since it is larger than the sum of its proper divisors (22786338548).

28083187852 is a wasteful number, since it uses less digits than its factorization.

28083187852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139425 (or 139423 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 52.

The spelling of 28083187852 in words is "twenty-eight billion, eighty-three million, one hundred eighty-seven thousand, eight hundred fifty-two".