641013228253 has 2 divisors, whose sum is σ = 641013228254. Its totient is φ = 641013228252.

The previous prime is 641013228179. The next prime is 641013228259. The reversal of 641013228253 is 352822310146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 640380856644 + 632371609 = 800238^2 + 25147^2 .

It is a cyclic number.

It is not a de Polignac number, because 641013228253 - 2¹⁷ = 641013097181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641013228259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320506614126 + 320506614127.

It is an arithmetic number, because the mean of its divisors is an integer number (320506614127).

Almost surely, 2^641013228253 is an apocalyptic number.

It is an amenable number.

641013228253 is a deficient number, since it is larger than the sum of its proper divisors (1).

641013228253 is an equidigital number, since it uses as much as digits as its factorization.

641013228253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 641013228253 its reverse (352822310146), we get a palindrome (993835538399).

The spelling of 641013228253 in words is "six hundred forty-one billion, thirteen million, two hundred twenty-eight thousand, two hundred fifty-three".