3655042510649 has 2 divisors, whose sum is σ = 3655042510650. Its totient is φ = 3655042510648.

The previous prime is 3655042510621. The next prime is 3655042510711. The reversal of 3655042510649 is 9460152405563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2472734235049 + 1182308275600 = 1572493^2 + 1087340^2 .

It is a cyclic number.

It is not a de Polignac number, because 3655042510649 - 2³² = 3650747543353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3655042510597 and 3655042510606.

It is not a weakly prime, because it can be changed into another prime (3655042530649) 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, 1827521255324 + 1827521255325.

It is an arithmetic number, because the mean of its divisors is an integer number (1827521255325).

Almost surely, 2^{3655042510649} is an apocalyptic number.

It is an amenable number.

3655042510649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3655042510649 is an equidigital number, since it uses as much as digits as its factorization.

3655042510649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 3655042510649 in words is "three trillion, six hundred fifty-five billion, forty-two million, five hundred ten thousand, six hundred forty-nine".