8081441381 has 8 divisors (see below), whose sum is σ = 8706315744. Its totient is φ = 7457027760.

The previous prime is 8081441353. The next prime is 8081441387. The reversal of 8081441381 is 1831441808.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-8081441381 is a prime.

It is a super-2 number, since 2×8081441381² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081441387) 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, 78311 + ... + 149316.

It is an arithmetic number, because the mean of its divisors is an integer number (1088289468).

Almost surely, 2^8081441381 is an apocalyptic number.

It is an amenable number.

8081441381 is a deficient number, since it is larger than the sum of its proper divisors (624874363).

8081441381 is a wasteful number, since it uses less digits than its factorization.

8081441381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230371.

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 8081441381 is about 89896.8374360300. The cubic root of 8081441381 is about 2006.7638809201.

The spelling of 8081441381 in words is "eight billion, eighty-one million, four hundred forty-one thousand, three hundred eighty-one".