8866636481 has 8 divisors (see below), whose sum is σ = 8968984200. Its totient is φ = 8764349440.

The previous prime is 8866636439. The next prime is 8866636487. The reversal of 8866636481 is 1846366688.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28944400 + 8837692081 = 5380^2 + 94009^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8866636481 - 2³⁰ = 7792894657 is a prime.

It is a super-2 number, since 2×8866636481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8866636487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321485 + ... + 347973.

It is an arithmetic number, because the mean of its divisors is an integer number (1121123025).

Almost surely, 2^8866636481 is an apocalyptic number.

It is an amenable number.

8866636481 is a deficient number, since it is larger than the sum of its proper divisors (102347719).

8866636481 is a wasteful number, since it uses less digits than its factorization.

8866636481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30339.

The product of its digits is 7962624, while the sum is 56.

The square root of 8866636481 is about 94162.8189945479. The cubic root of 8866636481 is about 2069.7583077206.

The spelling of 8866636481 in words is "eight billion, eight hundred sixty-six million, six hundred thirty-six thousand, four hundred eighty-one".