8081321287886 has 32 divisors (see below), whose sum is σ = 15113258519040. Its totient is φ = 3148537946400.

The previous prime is 8081321287801. The next prime is 8081321287937. The reversal of 8081321287886 is 6887821231808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25813580 + ... + 26124768.

It is an arithmetic number, because the mean of its divisors is an integer number (472289328720).

Almost surely, 2^{8081321287886} is an apocalyptic number.

8081321287886 is a deficient number, since it is larger than the sum of its proper divisors (7031937231154).

8081321287886 is a wasteful number, since it uses less digits than its factorization.

8081321287886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479840.

The product of its (nonzero) digits is 16515072, while the sum is 62.

The spelling of 8081321287886 in words is "eight trillion, eighty-one billion, three hundred twenty-one million, two hundred eighty-seven thousand, eight hundred eighty-six".