12643071613933 has 2 divisors, whose sum is σ = 12643071613934. Its totient is φ = 12643071613932.

The previous prime is 12643071613871. The next prime is 12643071613961. The reversal of 12643071613933 is 33931617034621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8790495625129 + 3852575988804 = 2964877^2 + 1962798^2 .

It is a cyclic number.

It is not a de Polignac number, because 12643071613933 - 2²⁹ = 12642534743021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12643071617933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6321535806966 + 6321535806967.

It is an arithmetic number, because the mean of its divisors is an integer number (6321535806967).

Almost surely, 2^{12643071613933} is an apocalyptic number.

It is an amenable number.

12643071613933 is a deficient number, since it is larger than the sum of its proper divisors (1).

12643071613933 is an equidigital number, since it uses as much as digits as its factorization.

12643071613933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 49.

The spelling of 12643071613933 in words is "twelve trillion, six hundred forty-three billion, seventy-one million, six hundred thirteen thousand, nine hundred thirty-three".