428589417678277 has 2 divisors, whose sum is σ = 428589417678278. Its totient is φ = 428589417678276.

The previous prime is 428589417678269. The next prime is 428589417678313. The reversal of 428589417678277 is 772876714985824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226991617870081 + 201597799808196 = 15066241^2 + 14198514^2 .

It is a cyclic number.

It is not a de Polignac number, because 428589417678277 - 2³ = 428589417678269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428589417678194 and 428589417678203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428589417678077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214294708839138 + 214294708839139.

It is an arithmetic number, because the mean of its divisors is an integer number (214294708839139).

Almost surely, 2^{428589417678277} is an apocalyptic number.

It is an amenable number.

428589417678277 is a deficient number, since it is larger than the sum of its proper divisors (1).

428589417678277 is an equidigital number, since it uses as much as digits as its factorization.

428589417678277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21242511360, while the sum is 85.

The spelling of 428589417678277 in words is "four hundred twenty-eight trillion, five hundred eighty-nine billion, four hundred seventeen million, six hundred seventy-eight thousand, two hundred seventy-seven".