34685107991 has 2 divisors, whose sum is σ = 34685107992. Its totient is φ = 34685107990.

The previous prime is 34685107969. The next prime is 34685107997. The reversal of 34685107991 is 19970158643.

34685107991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34685107991 - 2⁶ = 34685107927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34685107997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17342553995 + 17342553996.

It is an arithmetic number, because the mean of its divisors is an integer number (17342553996).

Almost surely, 2^34685107991 is an apocalyptic number.

34685107991 is a deficient number, since it is larger than the sum of its proper divisors (1).

34685107991 is an equidigital number, since it uses as much as digits as its factorization.

34685107991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 34685107991 in words is "thirty-four billion, six hundred eighty-five million, one hundred seven thousand, nine hundred ninety-one".