34261985689 has 2 divisors, whose sum is σ = 34261985690. Its totient is φ = 34261985688.

The previous prime is 34261985671. The next prime is 34261985701. The reversal of 34261985689 is 98658916243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24762169600 + 9499816089 = 157360^2 + 97467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34261985689 is a prime.

It is not a weakly prime, because it can be changed into another prime (34261985189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17130992844 + 17130992845.

It is an arithmetic number, because the mean of its divisors is an integer number (17130992845).

Almost surely, 2^34261985689 is an apocalyptic number.

It is an amenable number.

34261985689 is a deficient number, since it is larger than the sum of its proper divisors (1).

34261985689 is an equidigital number, since it uses as much as digits as its factorization.

34261985689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22394880, while the sum is 61.

The spelling of 34261985689 in words is "thirty-four billion, two hundred sixty-one million, nine hundred eighty-five thousand, six hundred eighty-nine".