12567400361 has 2 divisors, whose sum is σ = 12567400362. Its totient is φ = 12567400360.

The previous prime is 12567400327. The next prime is 12567400379. The reversal of 12567400361 is 16300476521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8258265625 + 4309134736 = 90875^2 + 65644^2 .

It is a cyclic number.

It is not a de Polignac number, because 12567400361 - 2¹⁰ = 12567399337 is a prime.

It is not a weakly prime, because it can be changed into another prime (12567400561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6283700180 + 6283700181.

It is an arithmetic number, because the mean of its divisors is an integer number (6283700181).

Almost surely, 2^12567400361 is an apocalyptic number.

It is an amenable number.

12567400361 is a deficient number, since it is larger than the sum of its proper divisors (1).

12567400361 is an equidigital number, since it uses as much as digits as its factorization.

12567400361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

Adding to 12567400361 its reverse (16300476521), we get a palindrome (28867876882).

The spelling of 12567400361 in words is "twelve billion, five hundred sixty-seven million, four hundred thousand, three hundred sixty-one".