5669788879649 has 2 divisors, whose sum is σ = 5669788879650. Its totient is φ = 5669788879648.

The previous prime is 5669788879571. The next prime is 5669788879709. The reversal of 5669788879649 is 9469788879665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5561899623424 + 107889256225 = 2358368^2 + 328465^2 .

It is a cyclic number.

It is not a de Polignac number, because 5669788879649 - 2²⁸ = 5669520444193 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5669788879049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2834894439824 + 2834894439825.

It is an arithmetic number, because the mean of its divisors is an integer number (2834894439825).

Almost surely, 2^{5669788879649} is an apocalyptic number.

It is an amenable number.

5669788879649 is a deficient number, since it is larger than the sum of its proper divisors (1).

5669788879649 is an equidigital number, since it uses as much as digits as its factorization.

5669788879649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79009136640, while the sum is 92.

The spelling of 5669788879649 in words is "five trillion, six hundred sixty-nine billion, seven hundred eighty-eight million, eight hundred seventy-nine thousand, six hundred forty-nine".