12865452629 has 2 divisors, whose sum is σ = 12865452630. Its totient is φ = 12865452628.

The previous prime is 12865452563. The next prime is 12865452637. The reversal of 12865452629 is 92625456821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7767778225 + 5097674404 = 88135^2 + 71398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12865452629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12865452029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6432726314 + 6432726315.

It is an arithmetic number, because the mean of its divisors is an integer number (6432726315).

Almost surely, 2^12865452629 is an apocalyptic number.

It is an amenable number.

12865452629 is a deficient number, since it is larger than the sum of its proper divisors (1).

12865452629 is an equidigital number, since it uses as much as digits as its factorization.

12865452629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2073600, while the sum is 50.

The spelling of 12865452629 in words is "twelve billion, eight hundred sixty-five million, four hundred fifty-two thousand, six hundred twenty-nine".