7165864089 has 24 divisors (see below), whose sum is σ = 10970230752. Its totient is φ = 4491849600.

The previous prime is 7165864007. The next prime is 7165864091. The reversal of 7165864089 is 9804685617.

7165864089 is a `hidden beast` number, since 7 + 16 + 586 + 40 + 8 + 9 = 666.

It is not a de Polignac number, because 7165864089 - 2¹⁹ = 7165339801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7165865089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138522 + ... + 183084.

It is an arithmetic number, because the mean of its divisors is an integer number (457092948).

Almost surely, 2^7165864089 is an apocalyptic number.

It is an amenable number.

7165864089 is a deficient number, since it is larger than the sum of its proper divisors (3804366663).

7165864089 is a wasteful number, since it uses less digits than its factorization.

7165864089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45637 (or 45634 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 7165864089 is about 84651.4269755685. The cubic root of 7165864089 is about 1927.9222800614.

The spelling of 7165864089 in words is "seven billion, one hundred sixty-five million, eight hundred sixty-four thousand, eighty-nine".