428683396819 has 2 divisors, whose sum is σ = 428683396820. Its totient is φ = 428683396818.

The previous prime is 428683396789. The next prime is 428683396831. The reversal of 428683396819 is 918693386824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428683396819 - 2²¹ = 428681299667 is a prime.

It is a super-2 number, since 2×428683396819² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (428683394819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214341698409 + 214341698410.

It is an arithmetic number, because the mean of its divisors is an integer number (214341698410).

Almost surely, 2^428683396819 is an apocalyptic number.

428683396819 is a deficient number, since it is larger than the sum of its proper divisors (1).

428683396819 is an equidigital number, since it uses as much as digits as its factorization.

428683396819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107495424, while the sum is 67.

The spelling of 428683396819 in words is "four hundred twenty-eight billion, six hundred eighty-three million, three hundred ninety-six thousand, eight hundred nineteen".