6631731037 has 2 divisors, whose sum is σ = 6631731038. Its totient is φ = 6631731036.

The previous prime is 6631731019. The next prime is 6631731061. The reversal of 6631731037 is 7301371366.

6631731037 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4037458681 + 2594272356 = 63541^2 + 50934^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6631731037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6631730987 and 6631731005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6638731037) 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, 3315865518 + 3315865519.

It is an arithmetic number, because the mean of its divisors is an integer number (3315865519).

Almost surely, 2^6631731037 is an apocalyptic number.

It is an amenable number.

6631731037 is a deficient number, since it is larger than the sum of its proper divisors (1).

6631731037 is an equidigital number, since it uses as much as digits as its factorization.

6631731037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 6631731037 is about 81435.4409148744. The cubic root of 6631731037 is about 1878.7787297000.

The spelling of 6631731037 in words is "six billion, six hundred thirty-one million, seven hundred thirty-one thousand, thirty-seven".