42681114181 has 8 divisors (see below), whose sum is σ = 43271818200. Its totient is φ = 42090573312.

The previous prime is 42681114169. The next prime is 42681114257. The reversal of 42681114181 is 18141118624.

It can be written as a sum of positive squares in 4 ways, for example, as 5957524225 + 36723589956 = 77185^2 + 191634^2 .

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 42681114181 - 2⁵ = 42681114149 is a prime.

It is a super-2 number, since 2×42681114181² (a number of 22 digits) contains 22 as substring.

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 42681114181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42681114101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543501 + ... + 617053.

It is an arithmetic number, because the mean of its divisors is an integer number (5408977275).

Almost surely, 2^42681114181 is an apocalyptic number.

It is an amenable number.

42681114181 is a deficient number, since it is larger than the sum of its proper divisors (590704019).

42681114181 is an equidigital number, since it uses as much as digits as its factorization.

42681114181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81575.

The product of its digits is 12288, while the sum is 37.

The spelling of 42681114181 in words is "forty-two billion, six hundred eighty-one million, one hundred fourteen thousand, one hundred eighty-one".