34905879191 has 2 divisors, whose sum is σ = 34905879192. Its totient is φ = 34905879190.

The previous prime is 34905879161. The next prime is 34905879209. The reversal of 34905879191 is 19197850943.

It is a strong prime.

It is an emirp because it is prime and its reverse (19197850943) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34905879191 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34905879161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17452939595 + 17452939596.

It is an arithmetic number, because the mean of its divisors is an integer number (17452939596).

Almost surely, 2^34905879191 is an apocalyptic number.

34905879191 is a deficient number, since it is larger than the sum of its proper divisors (1).

34905879191 is an equidigital number, since it uses as much as digits as its factorization.

34905879191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 56.

The spelling of 34905879191 in words is "thirty-four billion, nine hundred five million, eight hundred seventy-nine thousand, one hundred ninety-one".