28025070188 has 12 divisors (see below), whose sum is σ = 49430045952. Its totient is φ = 13902199920.

The previous prime is 28025070187. The next prime is 28025070191. The reversal of 28025070188 is 88107052082.

It is not an unprimeable number, because it can be changed into a prime (28025070187) 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, 27583223 + ... + 27584238.

It is an arithmetic number, because the mean of its divisors is an integer number (4119170496).

Almost surely, 2^28025070188 is an apocalyptic number.

It is an amenable number.

28025070188 is a deficient number, since it is larger than the sum of its proper divisors (21404975764).

28025070188 is a wasteful number, since it uses less digits than its factorization.

28025070188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55167592 (or 55167590 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 41.

The spelling of 28025070188 in words is "twenty-eight billion, twenty-five million, seventy thousand, one hundred eighty-eight".