3666868337 has 18 divisors (see below), whose sum is σ = 4055784726. Its totient is φ = 3312728320.

The previous prime is 3666868319. The next prime is 3666868339. The reversal of 3666868337 is 7338686663.

It can be written as a sum of positive squares in 3 ways, for example, as 2238330721 + 1428537616 = 47311^2 + 37796^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3666868337 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 (3666868339) 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 17 ways as a sum of consecutive naturals, for example, 10387553 + ... + 10387905.

Almost surely, 2^3666868337 is an apocalyptic number.

It is an amenable number.

3666868337 is a deficient number, since it is larger than the sum of its proper divisors (388916389).

3666868337 is an equidigital number, since it uses as much as digits as its factorization.

3666868337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961 (or 657 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 56.

The square root of 3666868337 is about 60554.6722970243. The cubic root of 3666868337 is about 1542.0499401206.

The spelling of 3666868337 in words is "three billion, six hundred sixty-six million, eight hundred sixty-eight thousand, three hundred thirty-seven".