34185156211 has 2 divisors, whose sum is σ = 34185156212. Its totient is φ = 34185156210.

The previous prime is 34185156199. The next prime is 34185156233. The reversal of 34185156211 is 11265158143.

It is a weak prime.

It is an emirp because it is prime and its reverse (11265158143) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34185156211 - 2⁵ = 34185156179 is a prime.

It is not a weakly prime, because it can be changed into another prime (34185156241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17092578105 + 17092578106.

It is an arithmetic number, because the mean of its divisors is an integer number (17092578106).

Almost surely, 2^34185156211 is an apocalyptic number.

34185156211 is a deficient number, since it is larger than the sum of its proper divisors (1).

34185156211 is an equidigital number, since it uses as much as digits as its factorization.

34185156211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 37.

The spelling of 34185156211 in words is "thirty-four billion, one hundred eighty-five million, one hundred fifty-six thousand, two hundred eleven".