8913790485181 has 2 divisors, whose sum is σ = 8913790485182. Its totient is φ = 8913790485180.

The previous prime is 8913790485169. The next prime is 8913790485191. The reversal of 8913790485181 is 1815840973198.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7557825722500 + 1355964762681 = 2749150^2 + 1164459^2 .

It is a cyclic number.

It is not a de Polignac number, because 8913790485181 - 2¹¹ = 8913790483133 is a prime.

It is a super-2 number, since 2×8913790485181² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8913790485161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4456895242590 + 4456895242591.

It is an arithmetic number, because the mean of its divisors is an integer number (4456895242591).

Almost surely, 2^{8913790485181} is an apocalyptic number.

It is an amenable number.

8913790485181 is a deficient number, since it is larger than the sum of its proper divisors (1).

8913790485181 is an equidigital number, since it uses as much as digits as its factorization.

8913790485181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17418240, while the sum is 64.

The spelling of 8913790485181 in words is "eight trillion, nine hundred thirteen billion, seven hundred ninety million, four hundred eighty-five thousand, one hundred eighty-one".