28113660201 has 16 divisors (see below), whose sum is σ = 41762654208. Its totient is φ = 16676058000.

The previous prime is 28113660149. The next prime is 28113660221. The reversal of 28113660201 is 10206631182.

It is not a de Polignac number, because 28113660201 - 2⁷ = 28113660073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28113660221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9061525 + ... + 9064626.

It is an arithmetic number, because the mean of its divisors is an integer number (2610165888).

Almost surely, 2^28113660201 is an apocalyptic number.

It is an amenable number.

28113660201 is a deficient number, since it is larger than the sum of its proper divisors (13648994007).

28113660201 is a wasteful number, since it uses less digits than its factorization.

28113660201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18126212.

The product of its (nonzero) digits is 3456, while the sum is 30.

The spelling of 28113660201 in words is "twenty-eight billion, one hundred thirteen million, six hundred sixty thousand, two hundred one".