97575578865 has 12 divisors (see below), whose sum is σ = 169131003444. Its totient is φ = 52040308704.

The previous prime is 97575578843. The next prime is 97575578897. The reversal of 97575578865 is 56887557579.

97575578865 is a `hidden beast` number, since 9 + 7 + 5 + 7 + 557 + 8 + 8 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13711473216 + 83864105649 = 117096^2 + 289593^2 .

It is not a de Polignac number, because 97575578865 - 2¹¹ = 97575576817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97575578793 and 97575578802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1084173054 + ... + 1084173143.

It is an arithmetic number, because the mean of its divisors is an integer number (14094250287).

Almost surely, 2^97575578865 is an apocalyptic number.

It is an amenable number.

97575578865 is a deficient number, since it is larger than the sum of its proper divisors (71555424579).

97575578865 is a wasteful number, since it uses less digits than its factorization.

97575578865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168346208 (or 2168346205 counting only the distinct ones).

The product of its digits is 740880000, while the sum is 72.

The spelling of 97575578865 in words is "ninety-seven billion, five hundred seventy-five million, five hundred seventy-eight thousand, eight hundred sixty-five".