2081360817 has 12 divisors (see below), whose sum is σ = 3006805620. Its totient is φ = 1387391328.

The previous prime is 2081360803. The next prime is 2081360821. The reversal of 2081360817 is 7180631802.

2081360817 is a `hidden beast` number, since 20 + 8 + 13 + 608 + 17 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1644383601 + 436977216 = 40551^2 + 20904^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2081360817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2081360857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125359 + ... + 140987.

It is an arithmetic number, because the mean of its divisors is an integer number (250567135).

Almost surely, 2^2081360817 is an apocalyptic number.

It is an amenable number.

2081360817 is a deficient number, since it is larger than the sum of its proper divisors (925444803).

2081360817 is a wasteful number, since it uses less digits than its factorization.

2081360817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30432 (or 30429 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2081360817 is about 45621.9335079082. The cubic root of 2081360817 is about 1276.7791779427.

The spelling of 2081360817 in words is "two billion, eighty-one million, three hundred sixty thousand, eight hundred seventeen".