426304164641 has 4 divisors (see below), whose sum is σ = 427288701252. Its totient is φ = 425319628032.

The previous prime is 426304164563. The next prime is 426304164659. The reversal of 426304164641 is 146461403624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181536497041 + 244767667600 = 426071^2 + 494740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426304164641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426304160641) 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 in 3 ways as a sum of consecutive naturals, for example, 492267656 + ... + 492268521.

It is an arithmetic number, because the mean of its divisors is an integer number (106822175313).

Almost surely, 2^426304164641 is an apocalyptic number.

It is an amenable number.

426304164641 is a deficient number, since it is larger than the sum of its proper divisors (984536611).

426304164641 is an equidigital number, since it uses as much as digits as its factorization.

426304164641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984536610.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 426304164641 in words is "four hundred twenty-six billion, three hundred four million, one hundred sixty-four thousand, six hundred forty-one".