34694787109 has 2 divisors, whose sum is σ = 34694787110. Its totient is φ = 34694787108.

The previous prime is 34694787107. The next prime is 34694787119. The reversal of 34694787109 is 90178749643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25735218084 + 8959569025 = 160422^2 + 94655^2 .

It is a cyclic number.

It is not a de Polignac number, because 34694787109 - 2¹ = 34694787107 is a prime.

Together with 34694787107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34694787107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17347393554 + 17347393555.

It is an arithmetic number, because the mean of its divisors is an integer number (17347393555).

Almost surely, 2^34694787109 is an apocalyptic number.

It is an amenable number.

34694787109 is a deficient number, since it is larger than the sum of its proper divisors (1).

34694787109 is an equidigital number, since it uses as much as digits as its factorization.

34694787109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 34694787109 in words is "thirty-four billion, six hundred ninety-four million, seven hundred eighty-seven thousand, one hundred nine".