168744874441 has 32 divisors (see below), whose sum is σ = 199250827776. Its totient is φ = 140887296000.

The previous prime is 168744874429. The next prime is 168744874489. The reversal of 168744874441 is 144478447861.

It is not a de Polignac number, because 168744874441 - 2¹¹ = 168744872393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168744874541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64478965 + ... + 64481581.

It is an arithmetic number, because the mean of its divisors is an integer number (6226588368).

Almost surely, 2^168744874441 is an apocalyptic number.

168744874441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

168744874441 is a deficient number, since it is larger than the sum of its proper divisors (30505953335).

168744874441 is a wasteful number, since it uses less digits than its factorization.

168744874441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4753.

The product of its digits is 19267584, while the sum is 58.

The spelling of 168744874441 in words is "one hundred sixty-eight billion, seven hundred forty-four million, eight hundred seventy-four thousand, four hundred forty-one".