426645946327 has 2 divisors, whose sum is σ = 426645946328. Its totient is φ = 426645946326.

The previous prime is 426645946217. The next prime is 426645946417. The reversal of 426645946327 is 723649546624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426645946327 is a prime.

It is a super-2 number, since 2×426645946327² (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 (426645946127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213322973163 + 213322973164.

It is an arithmetic number, because the mean of its divisors is an integer number (213322973164).

Almost surely, 2^426645946327 is an apocalyptic number.

426645946327 is a deficient number, since it is larger than the sum of its proper divisors (1).

426645946327 is an equidigital number, since it uses as much as digits as its factorization.

426645946327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52254720, while the sum is 58.

The spelling of 426645946327 in words is "four hundred twenty-six billion, six hundred forty-five million, nine hundred forty-six thousand, three hundred twenty-seven".