34081561309 has 2 divisors, whose sum is σ = 34081561310. Its totient is φ = 34081561308.

The previous prime is 34081561237. The next prime is 34081561369. The reversal of 34081561309 is 90316518043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33501811225 + 579750084 = 183035^2 + 24078^2 .

It is a cyclic number.

It is not a de Polignac number, because 34081561309 - 2⁷ = 34081561181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34081561369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17040780654 + 17040780655.

It is an arithmetic number, because the mean of its divisors is an integer number (17040780655).

Almost surely, 2^34081561309 is an apocalyptic number.

It is an amenable number.

34081561309 is a deficient number, since it is larger than the sum of its proper divisors (1).

34081561309 is an equidigital number, since it uses as much as digits as its factorization.

34081561309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 34081561309 in words is "thirty-four billion, eighty-one million, five hundred sixty-one thousand, three hundred nine".