8853599981 has 2 divisors, whose sum is σ = 8853599982. Its totient is φ = 8853599980.

The previous prime is 8853599947. The next prime is 8853600001. The reversal of 8853599981 is 1899953588.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8282820100 + 570779881 = 91010^2 + 23891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8853599981 is a prime.

It is a super-2 number, since 2×8853599981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8853599281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4426799990 + 4426799991.

It is an arithmetic number, because the mean of its divisors is an integer number (4426799991).

Almost surely, 2^8853599981 is an apocalyptic number.

It is an amenable number.

8853599981 is a deficient number, since it is larger than the sum of its proper divisors (1).

8853599981 is an equidigital number, since it uses as much as digits as its factorization.

8853599981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27993600, while the sum is 65.

The square root of 8853599981 is about 94093.5703488820. The cubic root of 8853599981 is about 2068.7434306208.

The spelling of 8853599981 in words is "eight billion, eight hundred fifty-three million, five hundred ninety-nine thousand, nine hundred eighty-one".