4051349868989 has 2 divisors, whose sum is σ = 4051349868990. Its totient is φ = 4051349868988.

The previous prime is 4051349868947. The next prime is 4051349869013. The reversal of 4051349868989 is 9898689431504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3084529976089 + 966819892900 = 1756283^2 + 983270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4051349868989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4051349868089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2025674934494 + 2025674934495.

It is an arithmetic number, because the mean of its divisors is an integer number (2025674934495).

Almost surely, 2^{4051349868989} is an apocalyptic number.

It is an amenable number.

4051349868989 is a deficient number, since it is larger than the sum of its proper divisors (1).

4051349868989 is an equidigital number, since it uses as much as digits as its factorization.

4051349868989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537477120, while the sum is 74.

The spelling of 4051349868989 in words is "four trillion, fifty-one billion, three hundred forty-nine million, eight hundred sixty-eight thousand, nine hundred eighty-nine".