28578675227 has 2 divisors, whose sum is σ = 28578675228. Its totient is φ = 28578675226.

The previous prime is 28578675221. The next prime is 28578675311. The reversal of 28578675227 is 72257687582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28578675227 - 2¹⁰ = 28578674203 is a prime.

It is not a weakly prime, because it can be changed into another prime (28578675221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14289337613 + 14289337614.

It is an arithmetic number, because the mean of its divisors is an integer number (14289337614).

Almost surely, 2^28578675227 is an apocalyptic number.

28578675227 is a deficient number, since it is larger than the sum of its proper divisors (1).

28578675227 is an equidigital number, since it uses as much as digits as its factorization.

28578675227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26342400, while the sum is 59.

The spelling of 28578675227 in words is "twenty-eight billion, five hundred seventy-eight million, six hundred seventy-five thousand, two hundred twenty-seven".