426625304069 has 2 divisors, whose sum is σ = 426625304070. Its totient is φ = 426625304068.

The previous prime is 426625303997. The next prime is 426625304071. The reversal of 426625304069 is 960403526624.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375325319044 + 51299985025 = 612638^2 + 226495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426625304069 is a prime.

It is a super-4 number, since 4×426625304069⁴ (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

Together with 426625304071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426625304269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213312652034 + 213312652035.

It is an arithmetic number, because the mean of its divisors is an integer number (213312652035).

Almost surely, 2^426625304069 is an apocalyptic number.

It is an amenable number.

426625304069 is a deficient number, since it is larger than the sum of its proper divisors (1).

426625304069 is an equidigital number, since it uses as much as digits as its factorization.

426625304069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 426625304069 in words is "four hundred twenty-six billion, six hundred twenty-five million, three hundred four thousand, sixty-nine".