6686368037 has 4 divisors (see below), whose sum is σ = 6686582796. Its totient is φ = 6686153280.

The previous prime is 6686367983. The next prime is 6686368043. The reversal of 6686368037 is 7308636866.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3568150756 + 3118217281 = 59734^2 + 55841^2 .

It is a cyclic number.

It is not a de Polignac number, because 6686368037 - 2¹⁰ = 6686367013 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 6686368037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6686368057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50708 + ... + 126269.

It is an arithmetic number, because the mean of its divisors is an integer number (1671645699).

Almost surely, 2^6686368037 is an apocalyptic number.

It is an amenable number.

6686368037 is a deficient number, since it is larger than the sum of its proper divisors (214759).

6686368037 is a wasteful number, since it uses less digits than its factorization.

6686368037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214758.

The product of its (nonzero) digits is 5225472, while the sum is 53.

The square root of 6686368037 is about 81770.2148523532. The cubic root of 6686368037 is about 1883.9242043973.

The spelling of 6686368037 in words is "six billion, six hundred eighty-six million, three hundred sixty-eight thousand, thirty-seven".