8863445881 has 2 divisors, whose sum is σ = 8863445882. Its totient is φ = 8863445880.

The previous prime is 8863445863. The next prime is 8863445893. The reversal of 8863445881 is 1885443688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6688622656 + 2174823225 = 81784^2 + 46635^2 .

It is a cyclic number.

It is not a de Polignac number, because 8863445881 - 2¹⁷ = 8863314809 is a prime.

It is a super-2 number, since 2×8863445881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8863445081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4431722940 + 4431722941.

It is an arithmetic number, because the mean of its divisors is an integer number (4431722941).

Almost surely, 2^8863445881 is an apocalyptic number.

It is an amenable number.

8863445881 is a deficient number, since it is larger than the sum of its proper divisors (1).

8863445881 is an equidigital number, since it uses as much as digits as its factorization.

8863445881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5898240, while the sum is 55.

The square root of 8863445881 is about 94145.8755389741. The cubic root of 8863445881 is about 2069.5100150286.

The spelling of 8863445881 in words is "eight billion, eight hundred sixty-three million, four hundred forty-five thousand, eight hundred eighty-one".