34649661689 has 2 divisors, whose sum is σ = 34649661690. Its totient is φ = 34649661688.

The previous prime is 34649661677. The next prime is 34649661703. The reversal of 34649661689 is 98616694643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29243736064 + 5405925625 = 171008^2 + 73525^2 .

It is a cyclic number.

It is not a de Polignac number, because 34649661689 - 2³² = 30354694393 is a prime.

It is not a weakly prime, because it can be changed into another prime (34649661889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17324830844 + 17324830845.

It is an arithmetic number, because the mean of its divisors is an integer number (17324830845).

Almost surely, 2^34649661689 is an apocalyptic number.

It is an amenable number.

34649661689 is a deficient number, since it is larger than the sum of its proper divisors (1).

34649661689 is an equidigital number, since it uses as much as digits as its factorization.

34649661689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40310784, while the sum is 62.

The spelling of 34649661689 in words is "thirty-four billion, six hundred forty-nine million, six hundred sixty-one thousand, six hundred eighty-nine".