28601136227 has 2 divisors, whose sum is σ = 28601136228. Its totient is φ = 28601136226.

The previous prime is 28601136217. The next prime is 28601136253. The reversal of 28601136227 is 72263110682.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28601136227 - 2¹⁸ = 28600874083 is a prime.

It is not a weakly prime, because it can be changed into another prime (28601136217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14300568113 + 14300568114.

It is an arithmetic number, because the mean of its divisors is an integer number (14300568114).

Almost surely, 2^28601136227 is an apocalyptic number.

28601136227 is a deficient number, since it is larger than the sum of its proper divisors (1).

28601136227 is an equidigital number, since it uses as much as digits as its factorization.

28601136227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 28601136227 in words is "twenty-eight billion, six hundred one million, one hundred thirty-six thousand, two hundred twenty-seven".