4064123289581 has 2 divisors, whose sum is σ = 4064123289582. Its totient is φ = 4064123289580.

The previous prime is 4064123289559. The next prime is 4064123289623. The reversal of 4064123289581 is 1859823214604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2232185402500 + 1831937887081 = 1494050^2 + 1353491^2 .

It is a cyclic number.

It is not a de Polignac number, because 4064123289581 - 2³⁴ = 4046943420397 is a prime.

It is a super-2 number, since 2×4064123289581² (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 (4064123289181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2032061644790 + 2032061644791.

It is an arithmetic number, because the mean of its divisors is an integer number (2032061644791).

Almost surely, 2^{4064123289581} is an apocalyptic number.

It is an amenable number.

4064123289581 is a deficient number, since it is larger than the sum of its proper divisors (1).

4064123289581 is an equidigital number, since it uses as much as digits as its factorization.

4064123289581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 4064123289581 in words is "four trillion, sixty-four billion, one hundred twenty-three million, two hundred eighty-nine thousand, five hundred eighty-one".