641264225423 has 2 divisors, whose sum is σ = 641264225424. Its totient is φ = 641264225422.

The previous prime is 641264225401. The next prime is 641264225453. The reversal of 641264225423 is 324522462146.

641264225423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 641264225423 - 2⁶ = 641264225359 is a prime.

It is a super-2 number, since 2×641264225423² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641264225453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320632112711 + 320632112712.

It is an arithmetic number, because the mean of its divisors is an integer number (320632112712).

Almost surely, 2^641264225423 is an apocalyptic number.

641264225423 is a deficient number, since it is larger than the sum of its proper divisors (1).

641264225423 is an equidigital number, since it uses as much as digits as its factorization.

641264225423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 41.

Adding to 641264225423 its reverse (324522462146), we get a palindrome (965786687569).

The spelling of 641264225423 in words is "six hundred forty-one billion, two hundred sixty-four million, two hundred twenty-five thousand, four hundred twenty-three".