426212001223663 has 2 divisors, whose sum is σ = 426212001223664. Its totient is φ = 426212001223662.

The previous prime is 426212001223607. The next prime is 426212001223717. The reversal of 426212001223663 is 366322100212624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426212001223663 is a prime.

It is a super-2 number, since 2×426212001223663² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426212001223163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213106000611831 + 213106000611832.

It is an arithmetic number, because the mean of its divisors is an integer number (213106000611832).

Almost surely, 2^{426212001223663} is an apocalyptic number.

426212001223663 is a deficient number, since it is larger than the sum of its proper divisors (1).

426212001223663 is an equidigital number, since it uses as much as digits as its factorization.

426212001223663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 426212001223663 in words is "four hundred twenty-six trillion, two hundred twelve billion, one million, two hundred twenty-three thousand, six hundred sixty-three".