2613263768123 has 2 divisors, whose sum is σ = 2613263768124. Its totient is φ = 2613263768122.

The previous prime is 2613263768047. The next prime is 2613263768147. The reversal of 2613263768123 is 3218673623162.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2613263768123 - 2²⁰ = 2613262719547 is a prime.

It is not a weakly prime, because it can be changed into another prime (2613263768183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1306631884061 + 1306631884062.

It is an arithmetic number, because the mean of its divisors is an integer number (1306631884062).

Almost surely, 2^{2613263768123} is an apocalyptic number.

2613263768123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2613263768123 is an equidigital number, since it uses as much as digits as its factorization.

2613263768123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 50.

The spelling of 2613263768123 in words is "two trillion, six hundred thirteen billion, two hundred sixty-three million, seven hundred sixty-eight thousand, one hundred twenty-three".