28342227201 has 4 divisors (see below), whose sum is σ = 37789636272. Its totient is φ = 18894818132.

The previous prime is 28342227167. The next prime is 28342227223. The reversal of 28342227201 is 10272224382.

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 a de Polignac number, because none of the positive numbers 2^k-28342227201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28342227101) 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, 4723704531 + ... + 4723704536.

It is an arithmetic number, because the mean of its divisors is an integer number (9447409068).

Almost surely, 2^28342227201 is an apocalyptic number.

It is an amenable number.

28342227201 is a deficient number, since it is larger than the sum of its proper divisors (9447409071).

28342227201 is an equidigital number, since it uses as much as digits as its factorization.

28342227201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9447409070.

The product of its (nonzero) digits is 21504, while the sum is 33.

The spelling of 28342227201 in words is "twenty-eight billion, three hundred forty-two million, two hundred twenty-seven thousand, two hundred one".