3658971361 has 2 divisors, whose sum is σ = 3658971362. Its totient is φ = 3658971360.

The previous prime is 3658971359. The next prime is 3658971373. The reversal of 3658971361 is 1631798563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2121155136 + 1537816225 = 46056^2 + 39215^2 .

It is a cyclic number.

It is not a de Polignac number, because 3658971361 - 2¹ = 3658971359 is a prime.

Together with 3658971359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3658971311) 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, 1829485680 + 1829485681.

It is an arithmetic number, because the mean of its divisors is an integer number (1829485681).

Almost surely, 2^3658971361 is an apocalyptic number.

It is an amenable number.

3658971361 is a deficient number, since it is larger than the sum of its proper divisors (1).

3658971361 is an equidigital number, since it uses as much as digits as its factorization.

3658971361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The square root of 3658971361 is about 60489.4318125075. The cubic root of 3658971361 is about 1540.9421570775.

The spelling of 3658971361 in words is "three billion, six hundred fifty-eight million, nine hundred seventy-one thousand, three hundred sixty-one".