428837238227 has 2 divisors, whose sum is σ = 428837238228. Its totient is φ = 428837238226.

The previous prime is 428837238211. The next prime is 428837238241. The reversal of 428837238227 is 722832738824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428837238227 - 2⁴ = 428837238211 is a prime.

It is not a weakly prime, because it can be changed into another prime (428837238287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214418619113 + 214418619114.

It is an arithmetic number, because the mean of its divisors is an integer number (214418619114).

Almost surely, 2^428837238227 is an apocalyptic number.

428837238227 is a deficient number, since it is larger than the sum of its proper divisors (1).

428837238227 is an equidigital number, since it uses as much as digits as its factorization.

428837238227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14450688, while the sum is 56.

The spelling of 428837238227 in words is "four hundred twenty-eight billion, eight hundred thirty-seven million, two hundred thirty-eight thousand, two hundred twenty-seven".