9128082681 has 9 divisors (see below), whose sum is σ = 13185422341. Its totient is φ = 6085197372.

The previous prime is 9128082673. The next prime is 9128082701. The reversal of 9128082681 is 1862808219.

It is a happy number.

The square root of 9128082681 is 95541.

It is a perfect power (a square), and thus also a powerful number.

9128082681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 9128082681 - 2³ = 9128082673 is a prime.

It is a super-2 number, since 2×9128082681² (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 (9128082631) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 270700 + ... + 302546.

Almost surely, 2^9128082681 is an apocalyptic number.

9128082681 is the 95541-st square number.

9128082681 is the 47771-st centered octagonal number.

It is an amenable number.

9128082681 is a deficient number, since it is larger than the sum of its proper divisors (4057339660).

9128082681 is an frugal number, since it uses more digits than its factorization.

9128082681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63700 (or 31850 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The cubic root of 9128082681 is about 2089.9048880353.

The spelling of 9128082681 in words is "nine billion, one hundred twenty-eight million, eighty-two thousand, six hundred eighty-one".