2634823689809 has 2 divisors, whose sum is σ = 2634823689810. Its totient is φ = 2634823689808.

The previous prime is 2634823689761. The next prime is 2634823689811. The reversal of 2634823689809 is 9089863284362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1985111923600 + 649711766209 = 1408940^2 + 806047^2 .

It is a cyclic number.

It is not a de Polignac number, because 2634823689809 - 2¹⁶ = 2634823624273 is a prime.

Together with 2634823689811, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2634823680809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1317411844904 + 1317411844905.

It is an arithmetic number, because the mean of its divisors is an integer number (1317411844905).

Almost surely, 2^{2634823689809} is an apocalyptic number.

It is an amenable number.

2634823689809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2634823689809 is an equidigital number, since it uses as much as digits as its factorization.

2634823689809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214990848, while the sum is 68.

The spelling of 2634823689809 in words is "two trillion, six hundred thirty-four billion, eight hundred twenty-three million, six hundred eighty-nine thousand, eight hundred nine".