3808545479281 has 2 divisors, whose sum is σ = 3808545479282. Its totient is φ = 3808545479280.

The previous prime is 3808545479243. The next prime is 3808545479371. The reversal of 3808545479281 is 1829745458083.

3808545479281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3646511053056 + 162034426225 = 1909584^2 + 402535^2 .

It is a cyclic number.

It is not a de Polignac number, because 3808545479281 - 2²⁷ = 3808411261553 is a prime.

It is a super-2 number, since 2×3808545479281² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3808545479581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1904272739640 + 1904272739641.

It is an arithmetic number, because the mean of its divisors is an integer number (1904272739641).

Almost surely, 2^{3808545479281} is an apocalyptic number.

It is an amenable number.

3808545479281 is a deficient number, since it is larger than the sum of its proper divisors (1).

3808545479281 is an equidigital number, since it uses as much as digits as its factorization.

3808545479281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77414400, while the sum is 64.

The spelling of 3808545479281 in words is "three trillion, eight hundred eight billion, five hundred forty-five million, four hundred seventy-nine thousand, two hundred eighty-one".