28895371201 has 4 divisors (see below), whose sum is σ = 30151691712. Its totient is φ = 27639050692.

The previous prime is 28895371177. The next prime is 28895371231. The reversal of 28895371201 is 10217359882.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28895371201 - 2⁹ = 28895370689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28895371231) 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 3 ways as a sum of consecutive naturals, for example, 628160221 + ... + 628160266.

It is an arithmetic number, because the mean of its divisors is an integer number (7537922928).

Almost surely, 2^28895371201 is an apocalyptic number.

It is an amenable number.

28895371201 is a deficient number, since it is larger than the sum of its proper divisors (1256320511).

28895371201 is a wasteful number, since it uses less digits than its factorization.

28895371201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256320510.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 28895371201 in words is "twenty-eight billion, eight hundred ninety-five million, three hundred seventy-one thousand, two hundred one".