4266202465981 has 2 divisors, whose sum is σ = 4266202465982. Its totient is φ = 4266202465980.

The previous prime is 4266202465919. The next prime is 4266202466023. The reversal of 4266202465981 is 1895642026624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4262123089081 + 4079376900 = 2064491^2 + 63870^2 .

It is a cyclic number.

It is not a de Polignac number, because 4266202465981 - 2¹⁹ = 4266201941693 is a prime.

It is a super-2 number, since 2×4266202465981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4266202463981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2133101232990 + 2133101232991.

It is an arithmetic number, because the mean of its divisors is an integer number (2133101232991).

Almost surely, 2^{4266202465981} is an apocalyptic number.

It is an amenable number.

4266202465981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4266202465981 is an equidigital number, since it uses as much as digits as its factorization.

4266202465981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9953280, while the sum is 55.

The spelling of 4266202465981 in words is "four trillion, two hundred sixty-six billion, two hundred two million, four hundred sixty-five thousand, nine hundred eighty-one".