428857359269 has 2 divisors, whose sum is σ = 428857359270. Its totient is φ = 428857359268.

The previous prime is 428857359241. The next prime is 428857359319. The reversal of 428857359269 is 962953758824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420960904225 + 7896455044 = 648815^2 + 88862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428857359269 is a prime.

It is a super-2 number, since 2×428857359269² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 428857359199 and 428857359208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428857356269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214428679634 + 214428679635.

It is an arithmetic number, because the mean of its divisors is an integer number (214428679635).

Almost surely, 2^428857359269 is an apocalyptic number.

It is an amenable number.

428857359269 is a deficient number, since it is larger than the sum of its proper divisors (1).

428857359269 is an equidigital number, since it uses as much as digits as its factorization.

428857359269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 261273600, while the sum is 68.

The spelling of 428857359269 in words is "four hundred twenty-eight billion, eight hundred fifty-seven million, three hundred fifty-nine thousand, two hundred sixty-nine".