426623326623 has 32 divisors (see below), whose sum is σ = 699048638400. Its totient is φ = 255441817728.

The previous prime is 426623326589. The next prime is 426623326687. The reversal of 426623326623 is 326623326624.

It is a happy number.

426623326623 is a `hidden beast` number, since 4 + 266 + 2 + 3 + 326 + 62 + 3 = 666.

It is not a de Polignac number, because 426623326623 - 2⁶ = 426623326559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426623326523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16412028 + ... + 16438001.

It is an arithmetic number, because the mean of its divisors is an integer number (21845269950).

Almost surely, 2^426623326623 is an apocalyptic number.

426623326623 is a deficient number, since it is larger than the sum of its proper divisors (272425311777).

426623326623 is a wasteful number, since it uses less digits than its factorization.

426623326623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32850088 (or 32850082 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 45.

Subtracting from 426623326623 its reverse (326623326624), we obtain a palindrome (99999999999).

The spelling of 426623326623 in words is "four hundred twenty-six billion, six hundred twenty-three million, three hundred twenty-six thousand, six hundred twenty-three".