4943251669 has 2 divisors, whose sum is σ = 4943251670. Its totient is φ = 4943251668.

The previous prime is 4943251639. The next prime is 4943251681. The reversal of 4943251669 is 9661523494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3783849169 + 1159402500 = 61513^2 + 34050^2 .

It is a cyclic number.

It is not a de Polignac number, because 4943251669 - 2¹¹ = 4943249621 is a prime.

It is a super-2 number, since 2×4943251669² = 48871474126142571122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4943251639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2471625834 + 2471625835.

It is an arithmetic number, because the mean of its divisors is an integer number (2471625835).

Almost surely, 2^4943251669 is an apocalyptic number.

It is an amenable number.

4943251669 is a deficient number, since it is larger than the sum of its proper divisors (1).

4943251669 is an equidigital number, since it uses as much as digits as its factorization.

4943251669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 49.

The square root of 4943251669 is about 70308.2617407087. The cubic root of 4943251669 is about 1703.4820979525.

It can be divided in two parts, 49432 and 51669, that added together give a palindrome (101101).

The spelling of 4943251669 in words is "four billion, nine hundred forty-three million, two hundred fifty-one thousand, six hundred sixty-nine".