8081235393085 has 4 divisors (see below), whose sum is σ = 9697482471708. Its totient is φ = 6464988314464.

The previous prime is 8081235393067. The next prime is 8081235393089. The reversal of 8081235393085 is 5803935321808.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5611113950841 + 2470121442244 = 2368779^2 + 1571662^2 .

It is a cyclic number.

It is not a de Polignac number, because 8081235393085 - 2⁵ = 8081235393053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081235393089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808123539304 + ... + 808123539313.

It is an arithmetic number, because the mean of its divisors is an integer number (2424370617927).

Almost surely, 2^{8081235393085} is an apocalyptic number.

It is an amenable number.

8081235393085 is a deficient number, since it is larger than the sum of its proper divisors (1616247078623).

8081235393085 is a wasteful number, since it uses less digits than its factorization.

8081235393085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616247078622.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 8081235393085 in words is "eight trillion, eighty-one billion, two hundred thirty-five million, three hundred ninety-three thousand, eighty-five".