12630443533 has 2 divisors, whose sum is σ = 12630443534. Its totient is φ = 12630443532.

The previous prime is 12630443521. The next prime is 12630443563. The reversal of 12630443533 is 33534403621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10000600009 + 2629843524 = 100003^2 + 51282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12630443533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12630443563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315221766 + 6315221767.

It is an arithmetic number, because the mean of its divisors is an integer number (6315221767).

Almost surely, 2^12630443533 is an apocalyptic number.

It is an amenable number.

12630443533 is a deficient number, since it is larger than the sum of its proper divisors (1).

12630443533 is an equidigital number, since it uses as much as digits as its factorization.

12630443533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 34.

The spelling of 12630443533 in words is "twelve billion, six hundred thirty million, four hundred forty-three thousand, five hundred thirty-three".