3661791037 has 2 divisors, whose sum is σ = 3661791038. Its totient is φ = 3661791036.

The previous prime is 3661791019. The next prime is 3661791047. The reversal of 3661791037 is 7301971663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2707537156 + 954253881 = 52034^2 + 30891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3661791037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3661790984 and 3661791002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3661791047) 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, 1830895518 + 1830895519.

It is an arithmetic number, because the mean of its divisors is an integer number (1830895519).

Almost surely, 2^3661791037 is an apocalyptic number.

It is an amenable number.

3661791037 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661791037 is an equidigital number, since it uses as much as digits as its factorization.

3661791037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 3661791037 is about 60512.7345027474. The cubic root of 3661791037 is about 1541.3378823204.

The spelling of 3661791037 in words is "three billion, six hundred sixty-one million, seven hundred ninety-one thousand, thirty-seven".