428144229719 has 2 divisors, whose sum is σ = 428144229720. Its totient is φ = 428144229718.

The previous prime is 428144229703. The next prime is 428144229763. The reversal of 428144229719 is 917922441824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428144229719 - 2⁴ = 428144229703 is a prime.

It is a super-2 number, since 2×428144229719² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428144229319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214072114859 + 214072114860.

It is an arithmetic number, because the mean of its divisors is an integer number (214072114860).

Almost surely, 2^428144229719 is an apocalyptic number.

428144229719 is a deficient number, since it is larger than the sum of its proper divisors (1).

428144229719 is an equidigital number, since it uses as much as digits as its factorization.

428144229719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 53.

The spelling of 428144229719 in words is "four hundred twenty-eight billion, one hundred forty-four million, two hundred twenty-nine thousand, seven hundred nineteen".