849171974534 has 16 divisors (see below), whose sum is σ = 1405196402400. Its totient is φ = 382366367040.

The previous prime is 849171974533. The next prime is 849171974551. The reversal of 849171974534 is 435479171948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849171974533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398297234 + ... + 398299365.

It is an arithmetic number, because the mean of its divisors is an integer number (87824775150).

Almost surely, 2^849171974534 is an apocalyptic number.

849171974534 is a deficient number, since it is larger than the sum of its proper divisors (556024427866).

849171974534 is a wasteful number, since it uses less digits than its factorization.

849171974534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796596655.

The product of its digits is 30481920, while the sum is 62.

The spelling of 849171974534 in words is "eight hundred forty-nine billion, one hundred seventy-one million, nine hundred seventy-four thousand, five hundred thirty-four".