4666886585861 has 2 divisors, whose sum is σ = 4666886585862. Its totient is φ = 4666886585860.

The previous prime is 4666886585833. The next prime is 4666886585873. The reversal of 4666886585861 is 1685856886664.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3887577229636 + 779309356225 = 1971694^2 + 882785^2 .

It is a cyclic number.

It is not a de Polignac number, because 4666886585861 - 2²⁶ = 4666819476997 is a prime.

It is a super-2 number, since 2×4666886585861² (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 (4666886585891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2333443292930 + 2333443292931.

It is an arithmetic number, because the mean of its divisors is an integer number (2333443292931).

Almost surely, 2^{4666886585861} is an apocalyptic number.

It is an amenable number.

4666886585861 is a deficient number, since it is larger than the sum of its proper divisors (1).

4666886585861 is an equidigital number, since it uses as much as digits as its factorization.

4666886585861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3185049600, while the sum is 77.

The spelling of 4666886585861 in words is "four trillion, six hundred sixty-six billion, eight hundred eighty-six million, five hundred eighty-five thousand, eight hundred sixty-one".