3709168081 has 2 divisors, whose sum is σ = 3709168082. Its totient is φ = 3709168080.

The previous prime is 3709168079. The next prime is 3709168093. The reversal of 3709168081 is 1808619073.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3703331025 + 5837056 = 60855^2 + 2416^2 .

It is a cyclic number.

It is not a de Polignac number, because 3709168081 - 2¹ = 3709168079 is a prime.

It is a super-2 number, since 2×3709168081² = 27515855706218445122, which contains 22 as substring.

Together with 3709168079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3709168051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1854584040 + 1854584041.

It is an arithmetic number, because the mean of its divisors is an integer number (1854584041).

Almost surely, 2^3709168081 is an apocalyptic number.

It is an amenable number.

3709168081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3709168081 is an equidigital number, since it uses as much as digits as its factorization.

3709168081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 3709168081 is about 60902.9398387303. The cubic root of 3709168081 is about 1547.9568057497.

The spelling of 3709168081 in words is "three billion, seven hundred nine million, one hundred sixty-eight thousand, eighty-one".