8985881137 has 2 divisors, whose sum is σ = 8985881138. Its totient is φ = 8985881136.

The previous prime is 8985881089. The next prime is 8985881209. The reversal of 8985881137 is 7311885898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4539525376 + 4446355761 = 67376^2 + 66681^2 .

It is a cyclic number.

It is not a de Polignac number, because 8985881137 - 2²³ = 8977492529 is a prime.

It is not a weakly prime, because it can be changed into another prime (8985881537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4492940568 + 4492940569.

It is an arithmetic number, because the mean of its divisors is an integer number (4492940569).

Almost surely, 2^8985881137 is an apocalyptic number.

It is an amenable number.

8985881137 is a deficient number, since it is larger than the sum of its proper divisors (1).

8985881137 is an equidigital number, since it uses as much as digits as its factorization.

8985881137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 58.

The square root of 8985881137 is about 94793.8876563252. The cubic root of 8985881137 is about 2078.9955345599.

The spelling of 8985881137 in words is "eight billion, nine hundred eighty-five million, eight hundred eighty-one thousand, one hundred thirty-seven".