2641747968469 has 2 divisors, whose sum is σ = 2641747968470. Its totient is φ = 2641747968468.

The previous prime is 2641747968451. The next prime is 2641747968511. The reversal of 2641747968469 is 9648697471462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2641723614244 + 24354225 = 1625338^2 + 4935^2 .

It is a cyclic number.

It is not a de Polignac number, because 2641747968469 - 2⁵ = 2641747968437 is a prime.

It is a super-2 number, since 2×2641747968469² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2641747968569) 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, 1320873984234 + 1320873984235.

It is an arithmetic number, because the mean of its divisors is an integer number (1320873984235).

Almost surely, 2^{2641747968469} is an apocalyptic number.

It is an amenable number.

2641747968469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2641747968469 is an equidigital number, since it uses as much as digits as its factorization.

2641747968469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 877879296, while the sum is 73.

The spelling of 2641747968469 in words is "two trillion, six hundred forty-one billion, seven hundred forty-seven million, nine hundred sixty-eight thousand, four hundred sixty-nine".