428762508227 has 2 divisors, whose sum is σ = 428762508228. Its totient is φ = 428762508226.

The previous prime is 428762508199. The next prime is 428762508277. The reversal of 428762508227 is 722805267824.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428762508227 - 2¹⁰ = 428762507203 is a prime.

It is a super-2 number, since 2×428762508227² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (428762508277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214381254113 + 214381254114.

It is an arithmetic number, because the mean of its divisors is an integer number (214381254114).

Almost surely, 2^428762508227 is an apocalyptic number.

428762508227 is a deficient number, since it is larger than the sum of its proper divisors (1).

428762508227 is an equidigital number, since it uses as much as digits as its factorization.

428762508227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6021120, while the sum is 53.

The spelling of 428762508227 in words is "four hundred twenty-eight billion, seven hundred sixty-two million, five hundred eight thousand, two hundred twenty-seven".