97986118905 has 32 divisors (see below), whose sum is σ = 174412533120. Its totient is φ = 52194767040.

The previous prime is 97986118883. The next prime is 97986118963. The reversal of 97986118905 is 50981168979.

97986118905 is a `hidden beast` number, since 9 + 7 + 9 + 8 + 611 + 8 + 9 + 0 + 5 = 666.

It is not a de Polignac number, because 97986118905 - 2¹¹ = 97986116857 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 338002 + ... + 556971.

It is an arithmetic number, because the mean of its divisors is an integer number (5450391660).

Almost surely, 2^97986118905 is an apocalyptic number.

It is an amenable number.

97986118905 is a deficient number, since it is larger than the sum of its proper divisors (76426414215).

97986118905 is a wasteful number, since it uses less digits than its factorization.

97986118905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895798 (or 895792 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 63.

The spelling of 97986118905 in words is "ninety-seven billion, nine hundred eighty-six million, one hundred eighteen thousand, nine hundred five".