2643120255329 has 2 divisors, whose sum is σ = 2643120255330. Its totient is φ = 2643120255328.

The previous prime is 2643120255263. The next prime is 2643120255367. The reversal of 2643120255329 is 9235520213462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1631993475025 + 1011126780304 = 1277495^2 + 1005548^2 .

It is a cyclic number.

It is not a de Polignac number, because 2643120255329 - 2²⁰ = 2643119206753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2643120255329.

It is not a weakly prime, because it can be changed into another prime (2643120255029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321560127664 + 1321560127665.

It is an arithmetic number, because the mean of its divisors is an integer number (1321560127665).

Almost surely, 2^{2643120255329} is an apocalyptic number.

It is an amenable number.

2643120255329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2643120255329 is an equidigital number, since it uses as much as digits as its factorization.

2643120255329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 2643120255329 in words is "two trillion, six hundred forty-three billion, one hundred twenty million, two hundred fifty-five thousand, three hundred twenty-nine".