72413226185 has 8 divisors (see below), whose sum is σ = 87791705736. Its totient is φ = 57333358080.

The previous prime is 72413226167. The next prime is 72413226187. The reversal of 72413226185 is 58162231427.

It can be written as a sum of positive squares in 4 ways, for example, as 17693256256 + 54719969929 = 133016^2 + 233923^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72413226185 - 2³² = 68118258889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72413226187) 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, 74652326 + ... + 74653295.

It is an arithmetic number, because the mean of its divisors is an integer number (10973963217).

Almost surely, 2^72413226185 is an apocalyptic number.

It is an amenable number.

72413226185 is a deficient number, since it is larger than the sum of its proper divisors (15378479551).

72413226185 is a wasteful number, since it uses less digits than its factorization.

72413226185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149305723.

The product of its digits is 161280, while the sum is 41.

The spelling of 72413226185 in words is "seventy-two billion, four hundred thirteen million, two hundred twenty-six thousand, one hundred eighty-five".