8081999703 has 12 divisors (see below), whose sum is σ = 11676228928. Its totient is φ = 5386970880.

The previous prime is 8081999689. The next prime is 8081999719. The reversal of 8081999703 is 3079991808.

It is not a de Polignac number, because 8081999703 - 2²² = 8077805399 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 8081999703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081999743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34378 + ... + 131703.

Almost surely, 2^8081999703 is an apocalyptic number.

8081999703 is a deficient number, since it is larger than the sum of its proper divisors (3594229225).

8081999703 is a wasteful number, since it uses less digits than its factorization.

8081999703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171494 (or 171491 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 54.

The square root of 8081999703 is about 89899.9427307938. The cubic root of 8081999703 is about 2006.8100935766.

The spelling of 8081999703 in words is "eight billion, eighty-one million, nine hundred ninety-nine thousand, seven hundred three".