844749068134 has 4 divisors (see below), whose sum is σ = 1267123602204. Its totient is φ = 422374534066.

The previous prime is 844749068083. The next prime is 844749068167. The reversal of 844749068134 is 431860947448.

It is a happy number.

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

It is a super-2 number, since 2×844749068134² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211187267032 + ... + 211187267035.

It is an arithmetic number, because the mean of its divisors is an integer number (316780900551).

Almost surely, 2^844749068134 is an apocalyptic number.

844749068134 is a deficient number, since it is larger than the sum of its proper divisors (422374534070).

844749068134 is a wasteful number, since it uses less digits than its factorization.

844749068134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422374534069.

The product of its (nonzero) digits is 18579456, while the sum is 58.

The spelling of 844749068134 in words is "eight hundred forty-four billion, seven hundred forty-nine million, sixty-eight thousand, one hundred thirty-four".