426244026321 has 6 divisors (see below), whose sum is σ = 615685815810. Its totient is φ = 284162684208.

The previous prime is 426244026281. The next prime is 426244026343. The reversal of 426244026321 is 123620442624.

426244026321 is a `hidden beast` number, since 4 + 2 + 624 + 4 + 0 + 2 + 6 + 3 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 213962678721 + 212281347600 = 462561^2 + 460740^2 .

It is not a de Polignac number, because 426244026321 - 2⁷ = 426244026193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426244026421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23680223676 + ... + 23680223693.

It is an arithmetic number, because the mean of its divisors is an integer number (102614302635).

Almost surely, 2^426244026321 is an apocalyptic number.

It is an amenable number.

426244026321 is a deficient number, since it is larger than the sum of its proper divisors (189441789489).

426244026321 is a wasteful number, since it uses less digits than its factorization.

426244026321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47360447375 (or 47360447372 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 426244026321 its reverse (123620442624), we get a palindrome (549864468945).

The spelling of 426244026321 in words is "four hundred twenty-six billion, two hundred forty-four million, twenty-six thousand, three hundred twenty-one".