1428346212857 has 2 divisors, whose sum is σ = 1428346212858. Its totient is φ = 1428346212856.

The previous prime is 1428346212847. The next prime is 1428346212899. The reversal of 1428346212857 is 7582126438241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1169131837696 + 259214375161 = 1081264^2 + 509131^2 .

It is a cyclic number.

It is not a de Polignac number, because 1428346212857 - 2²⁴ = 1428329435641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1428346212799 and 1428346212808.

It is not a weakly prime, because it can be changed into another prime (1428346212827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714173106428 + 714173106429.

It is an arithmetic number, because the mean of its divisors is an integer number (714173106429).

Almost surely, 2^{1428346212857} is an apocalyptic number.

It is an amenable number.

1428346212857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428346212857 is an equidigital number, since it uses as much as digits as its factorization.

1428346212857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5160960, while the sum is 53.

The spelling of 1428346212857 in words is "one trillion, four hundred twenty-eight billion, three hundred forty-six million, two hundred twelve thousand, eight hundred fifty-seven".