426458616989 has 2 divisors, whose sum is σ = 426458616990. Its totient is φ = 426458616988.

The previous prime is 426458616953. The next prime is 426458617019. The reversal of 426458616989 is 989616854624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383643972100 + 42814644889 = 619390^2 + 206917^2 .

It is a cyclic number.

It is not a de Polignac number, because 426458616989 - 2²⁸ = 426190181533 is a prime.

It is a super-2 number, since 2×426458616989² (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 (426458616919) 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, 213229308494 + 213229308495.

It is an arithmetic number, because the mean of its divisors is an integer number (213229308495).

Almost surely, 2^426458616989 is an apocalyptic number.

It is an amenable number.

426458616989 is a deficient number, since it is larger than the sum of its proper divisors (1).

426458616989 is an equidigital number, since it uses as much as digits as its factorization.

426458616989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 179159040, while the sum is 68.

The spelling of 426458616989 in words is "four hundred twenty-six billion, four hundred fifty-eight million, six hundred sixteen thousand, nine hundred eighty-nine".