6618461446049 has 2 divisors, whose sum is σ = 6618461446050. Its totient is φ = 6618461446048.

The previous prime is 6618461446031. The next prime is 6618461446081. The reversal of 6618461446049 is 9406441648166.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6578404225600 + 40057220449 = 2564840^2 + 200143^2 .

It is a cyclic number.

It is not a de Polignac number, because 6618461446049 - 2⁸ = 6618461445793 is a prime.

It is not a weakly prime, because it can be changed into another prime (6618461406049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3309230723024 + 3309230723025.

It is an arithmetic number, because the mean of its divisors is an integer number (3309230723025).

Almost surely, 2^{6618461446049} is an apocalyptic number.

It is an amenable number.

6618461446049 is a deficient number, since it is larger than the sum of its proper divisors (1).

6618461446049 is an equidigital number, since it uses as much as digits as its factorization.

6618461446049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23887872, while the sum is 59.

The spelling of 6618461446049 in words is "six trillion, six hundred eighteen billion, four hundred sixty-one million, four hundred forty-six thousand, forty-nine".