428361396271 has 2 divisors, whose sum is σ = 428361396272. Its totient is φ = 428361396270.

The previous prime is 428361396257. The next prime is 428361396311. The reversal of 428361396271 is 172693163824.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428361396271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428361396371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214180698135 + 214180698136.

It is an arithmetic number, because the mean of its divisors is an integer number (214180698136).

Almost surely, 2^428361396271 is an apocalyptic number.

428361396271 is a deficient number, since it is larger than the sum of its proper divisors (1).

428361396271 is an equidigital number, since it uses as much as digits as its factorization.

428361396271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 52.

The spelling of 428361396271 in words is "four hundred twenty-eight billion, three hundred sixty-one million, three hundred ninety-six thousand, two hundred seventy-one".