834394345271 has 4 divisors (see below), whose sum is σ = 835660498200. Its totient is φ = 833128192344.

The previous prime is 834394345261. The next prime is 834394345289. The reversal of 834394345271 is 172543493438.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 834394345271 - 2²² = 834390150967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834394345261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633075476 + ... + 633076793.

It is an arithmetic number, because the mean of its divisors is an integer number (208915124550).

Almost surely, 2^834394345271 is an apocalyptic number.

834394345271 is a deficient number, since it is larger than the sum of its proper divisors (1266152929).

834394345271 is a wasteful number, since it uses less digits than its factorization.

834394345271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266152928.

The product of its digits is 8709120, while the sum is 53.

The spelling of 834394345271 in words is "eight hundred thirty-four billion, three hundred ninety-four million, three hundred forty-five thousand, two hundred seventy-one".