4945061669 has 2 divisors, whose sum is σ = 4945061670. Its totient is φ = 4945061668.

The previous prime is 4945061659. The next prime is 4945061851. The reversal of 4945061669 is 9661605494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2871352225 + 2073709444 = 53585^2 + 45538^2 .

It is a cyclic number.

It is not a de Polignac number, because 4945061669 - 2⁸ = 4945061413 is a prime.

It is a super-2 number, since 2×4945061669² = 48907269820426131122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4945061659) 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, 2472530834 + 2472530835.

It is an arithmetic number, because the mean of its divisors is an integer number (2472530835).

Almost surely, 2^4945061669 is an apocalyptic number.

It is an amenable number.

4945061669 is a deficient number, since it is larger than the sum of its proper divisors (1).

4945061669 is an equidigital number, since it uses as much as digits as its factorization.

4945061669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 4945061669 is about 70321.1324496413. The cubic root of 4945061669 is about 1703.6899858340.

The spelling of 4945061669 in words is "four billion, nine hundred forty-five million, sixty-one thousand, six hundred sixty-nine".