672881261185 has 32 divisors (see below), whose sum is σ = 954121439232. Its totient is φ = 445796144640.

The previous prime is 672881261159. The next prime is 672881261197. The reversal of 672881261185 is 581162188276.

It is not a de Polignac number, because 672881261185 - 2⁷ = 672881261057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166879 + ... + 1172011.

It is an arithmetic number, because the mean of its divisors is an integer number (29816294976).

Almost surely, 2^672881261185 is an apocalyptic number.

It is an amenable number.

672881261185 is a deficient number, since it is larger than the sum of its proper divisors (281240178047).

672881261185 is a wasteful number, since it uses less digits than its factorization.

672881261185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005793.

The product of its digits is 2580480, while the sum is 55.

The spelling of 672881261185 in words is "six hundred seventy-two billion, eight hundred eighty-one million, two hundred sixty-one thousand, one hundred eighty-five".