844160136972 has 24 divisors (see below), whose sum is σ = 1981092580656. Its totient is φ = 279760198848.

The previous prime is 844160136961. The next prime is 844160136977. The reversal of 844160136972 is 279631061448.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (844160136977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203312023 + ... + 203316174.

It is an arithmetic number, because the mean of its divisors is an integer number (82545524194).

Almost surely, 2^844160136972 is an apocalyptic number.

It is an amenable number.

844160136972 is an abundant number, since it is smaller than the sum of its proper divisors (1136932443684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

844160136972 is a wasteful number, since it uses less digits than its factorization.

844160136972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406628377 (or 406628375 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 844160136972 in words is "eight hundred forty-four billion, one hundred sixty million, one hundred thirty-six thousand, nine hundred seventy-two".