428070666227 has 2 divisors, whose sum is σ = 428070666228. Its totient is φ = 428070666226.

The previous prime is 428070666193. The next prime is 428070666269. The reversal of 428070666227 is 722666070824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428070666227 - 2¹⁰ = 428070665203 is a prime.

It is not a weakly prime, because it can be changed into another prime (428070666827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214035333113 + 214035333114.

It is an arithmetic number, because the mean of its divisors is an integer number (214035333114).

Almost surely, 2^428070666227 is an apocalyptic number.

428070666227 is a deficient number, since it is larger than the sum of its proper divisors (1).

428070666227 is an equidigital number, since it uses as much as digits as its factorization.

428070666227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 428070666227 in words is "four hundred twenty-eight billion, seventy million, six hundred sixty-six thousand, two hundred twenty-seven".