6689352037 has 2 divisors, whose sum is σ = 6689352038. Its totient is φ = 6689352036.

The previous prime is 6689352031. The next prime is 6689352067. The reversal of 6689352037 is 7302539866.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6654317476 + 35034561 = 81574^2 + 5919^2 .

It is a cyclic number.

It is not a de Polignac number, because 6689352037 - 2¹⁵ = 6689319269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6689352031) 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 as a sum of consecutive naturals, namely, 3344676018 + 3344676019.

It is an arithmetic number, because the mean of its divisors is an integer number (3344676019).

Almost surely, 2^6689352037 is an apocalyptic number.

It is an amenable number.

6689352037 is a deficient number, since it is larger than the sum of its proper divisors (1).

6689352037 is an equidigital number, since it uses as much as digits as its factorization.

6689352037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The square root of 6689352037 is about 81788.4590697245. The cubic root of 6689352037 is about 1884.2044160023.

The spelling of 6689352037 in words is "six billion, six hundred eighty-nine million, three hundred fifty-two thousand, thirty-seven".