426633221471 has 2 divisors, whose sum is σ = 426633221472. Its totient is φ = 426633221470.

The previous prime is 426633221429. The next prime is 426633221479. The reversal of 426633221471 is 174122336624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426633221471 is a prime.

It is a super-3 number, since 3×426633221471³ (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 (426633221479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213316610735 + 213316610736.

It is an arithmetic number, because the mean of its divisors is an integer number (213316610736).

Almost surely, 2^426633221471 is an apocalyptic number.

426633221471 is a deficient number, since it is larger than the sum of its proper divisors (1).

426633221471 is an equidigital number, since it uses as much as digits as its factorization.

426633221471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 41.

The spelling of 426633221471 in words is "four hundred twenty-six billion, six hundred thirty-three million, two hundred twenty-one thousand, four hundred seventy-one".