28807188201 has 12 divisors (see below), whose sum is σ = 45393145200. Its totient is φ = 17458901880.

The previous prime is 28807188191. The next prime is 28807188203. The reversal of 28807188201 is 10288170882.

It is not a de Polignac number, because 28807188201 - 2⁵ = 28807188169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28807188203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145490751 + ... + 145490948.

It is an arithmetic number, because the mean of its divisors is an integer number (3782762100).

Almost surely, 2^28807188201 is an apocalyptic number.

It is an amenable number.

28807188201 is a deficient number, since it is larger than the sum of its proper divisors (16585956999).

28807188201 is a wasteful number, since it uses less digits than its factorization.

28807188201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290981716 (or 290981713 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 45.

The spelling of 28807188201 in words is "twenty-eight billion, eight hundred seven million, one hundred eighty-eight thousand, two hundred one".