97680944865 has 64 divisors (see below), whose sum is σ = 184622469120. Its totient is φ = 43177501440.

The previous prime is 97680944863. The next prime is 97680944887. The reversal of 97680944865 is 56844908679.

It is not a de Polignac number, because 97680944865 - 2¹ = 97680944863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97680944796 and 97680944805.

It is not an unprimeable number, because it can be changed into a prime (97680944863) 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 63 ways as a sum of consecutive naturals, for example, 248652 + ... + 507138.

It is an arithmetic number, because the mean of its divisors is an integer number (2884726080).

Almost surely, 2^97680944865 is an apocalyptic number.

It is an amenable number.

97680944865 is a deficient number, since it is larger than the sum of its proper divisors (86941524255).

97680944865 is a wasteful number, since it uses less digits than its factorization.

97680944865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258622.

The product of its (nonzero) digits is 104509440, while the sum is 66.

The spelling of 97680944865 in words is "ninety-seven billion, six hundred eighty million, nine hundred forty-four thousand, eight hundred sixty-five".