426844271647 has 2 divisors, whose sum is σ = 426844271648. Its totient is φ = 426844271646.

The previous prime is 426844271621. The next prime is 426844271657. The reversal of 426844271647 is 746172448624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426844271647 is a prime.

It is a super-3 number, since 3×426844271647³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426844271617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213422135823 + 213422135824.

It is an arithmetic number, because the mean of its divisors is an integer number (213422135824).

Almost surely, 2^426844271647 is an apocalyptic number.

426844271647 is a deficient number, since it is larger than the sum of its proper divisors (1).

426844271647 is an equidigital number, since it uses as much as digits as its factorization.

426844271647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14450688, while the sum is 55.

The spelling of 426844271647 in words is "four hundred twenty-six billion, eight hundred forty-four million, two hundred seventy-one thousand, six hundred forty-seven".