12633681469 has 2 divisors, whose sum is σ = 12633681470. Its totient is φ = 12633681468.

The previous prime is 12633681443. The next prime is 12633681479. The reversal of 12633681469 is 96418633621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8679158244 + 3954523225 = 93162^2 + 62885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12633681469 is a prime.

It is a super-2 number, since 2×12633681469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12633681479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6316840734 + 6316840735.

It is an arithmetic number, because the mean of its divisors is an integer number (6316840735).

Almost surely, 2^12633681469 is an apocalyptic number.

It is an amenable number.

12633681469 is a deficient number, since it is larger than the sum of its proper divisors (1).

12633681469 is an equidigital number, since it uses as much as digits as its factorization.

12633681469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 49.

The spelling of 12633681469 in words is "twelve billion, six hundred thirty-three million, six hundred eighty-one thousand, four hundred sixty-nine".