181372493068441 has 8 divisors (see below), whose sum is σ = 181401530637600. Its totient is φ = 181343456309568.

The previous prime is 181372493068433. The next prime is 181372493068451. The reversal of 181372493068441 is 144860394273181.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 181372493068441 - 2³ = 181372493068433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 181372493068441.

It is not an unprimeable number, because it can be changed into a prime (181372493068451) 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, 576164410 + ... + 576479116.

It is an arithmetic number, because the mean of its divisors is an integer number (22675191329700).

Almost surely, 2^{181372493068441} is an apocalyptic number.

It is an amenable number.

181372493068441 is a deficient number, since it is larger than the sum of its proper divisors (29037569159).

181372493068441 is an equidigital number, since it uses as much as digits as its factorization.

181372493068441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405143.

The product of its (nonzero) digits is 27869184, while the sum is 61.

The spelling of 181372493068441 in words is "one hundred eighty-one trillion, three hundred seventy-two billion, four hundred ninety-three million, sixty-eight thousand, four hundred forty-one".