97307133885 has 24 divisors (see below), whose sum is σ = 181639984344. Its totient is φ = 47905050240.

The previous prime is 97307133883. The next prime is 97307134013. The reversal of 97307133885 is 58833170379.

It can be written as a sum of positive squares in 4 ways, for example, as 1280279961 + 96026853924 = 35781^2 + 309882^2 .

It is not a de Polignac number, because 97307133885 - 2¹ = 97307133883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97307133883) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 83167906 + ... + 83169075.

It is an arithmetic number, because the mean of its divisors is an integer number (7568332681).

Almost surely, 2^97307133885 is an apocalyptic number.

It is an amenable number.

97307133885 is a deficient number, since it is larger than the sum of its proper divisors (84332850459).

97307133885 is a wasteful number, since it uses less digits than its factorization.

97307133885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166337005 (or 166337002 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 97307133885 in words is "ninety-seven billion, three hundred seven million, one hundred thirty-three thousand, eight hundred eighty-five".