635772722323 has 2 divisors, whose sum is σ = 635772722324. Its totient is φ = 635772722322.

The previous prime is 635772722317. The next prime is 635772722369. The reversal of 635772722323 is 323227277536.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-635772722323 is a prime.

It is not a weakly prime, because it can be changed into another prime (635772722383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317886361161 + 317886361162.

It is an arithmetic number, because the mean of its divisors is an integer number (317886361162).

Almost surely, 2^635772722323 is an apocalyptic number.

635772722323 is a deficient number, since it is larger than the sum of its proper divisors (1).

635772722323 is an equidigital number, since it uses as much as digits as its factorization.

635772722323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4445280, while the sum is 49.

Adding to 635772722323 its reverse (323227277536), we get a palindrome (958999999859).

The spelling of 635772722323 in words is "six hundred thirty-five billion, seven hundred seventy-two million, seven hundred twenty-two thousand, three hundred twenty-three".