8891124481 has 2 divisors, whose sum is σ = 8891124482. Its totient is φ = 8891124480.

The previous prime is 8891124391. The next prime is 8891124523. The reversal of 8891124481 is 1844211988.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5793645456 + 3097479025 = 76116^2 + 55655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8891124481 is a prime.

It is a super-2 number, since 2×8891124481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8891127481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4445562240 + 4445562241.

It is an arithmetic number, because the mean of its divisors is an integer number (4445562241).

Almost surely, 2^8891124481 is an apocalyptic number.

It is an amenable number.

8891124481 is a deficient number, since it is larger than the sum of its proper divisors (1).

8891124481 is an equidigital number, since it uses as much as digits as its factorization.

8891124481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 46.

The square root of 8891124481 is about 94292.7594304038. The cubic root of 8891124481 is about 2071.6619853576.

The spelling of 8891124481 in words is "eight billion, eight hundred ninety-one million, one hundred twenty-four thousand, four hundred eighty-one".