12577222453 has 2 divisors, whose sum is σ = 12577222454. Its totient is φ = 12577222452.

The previous prime is 12577222451. The next prime is 12577222531. The reversal of 12577222453 is 35422277521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12413970724 + 163251729 = 111418^2 + 12777^2 .

It is a cyclic number.

It is not a de Polignac number, because 12577222453 - 2¹ = 12577222451 is a prime.

Together with 12577222451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12577222451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6288611226 + 6288611227.

It is an arithmetic number, because the mean of its divisors is an integer number (6288611227).

Almost surely, 2^12577222453 is an apocalyptic number.

It is an amenable number.

12577222453 is a deficient number, since it is larger than the sum of its proper divisors (1).

12577222453 is an equidigital number, since it uses as much as digits as its factorization.

12577222453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235200, while the sum is 40.

Adding to 12577222453 its reverse (35422277521), we get a palindrome (47999499974).

It can be divided in two parts, 125772 and 22453, that added together give a square (148225 = 385²).

The spelling of 12577222453 in words is "twelve billion, five hundred seventy-seven million, two hundred twenty-two thousand, four hundred fifty-three".