97985118988 has 12 divisors (see below), whose sum is σ = 171481276512. Its totient is φ = 48990468560.

The previous prime is 97985118967. The next prime is 97985119007. The reversal of 97985118988 is 88981158979.

It is a self number, because there is not a number n which added to its sum of digits gives 97985118988.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414820 + ... + 606667.

It is an arithmetic number, because the mean of its divisors is an integer number (14290106376).

Almost surely, 2^97985118988 is an apocalyptic number.

It is an amenable number.

97985118988 is a deficient number, since it is larger than the sum of its proper divisors (73496157524).

97985118988 is a wasteful number, since it uses less digits than its factorization.

97985118988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045472 (or 1045470 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 73.

The spelling of 97985118988 in words is "ninety-seven billion, nine hundred eighty-five million, one hundred eighteen thousand, nine hundred eighty-eight".