97986118990 has 32 divisors (see below), whose sum is σ = 176905944000. Its totient is φ = 39076627968.

The previous prime is 97986118987. The next prime is 97986118991. The reversal of 97986118990 is 9981168979.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97986118991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5126271 + ... + 5145349.

It is an arithmetic number, because the mean of its divisors is an integer number (5528310750).

Almost surely, 2^97986118990 is an apocalyptic number.

97986118990 is a deficient number, since it is larger than the sum of its proper divisors (78919825010).

97986118990 is a wasteful number, since it uses less digits than its factorization.

97986118990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20604.

The product of its (nonzero) digits is 17635968, while the sum is 67.

The spelling of 97986118990 in words is "ninety-seven billion, nine hundred eighty-six million, one hundred eighteen thousand, nine hundred ninety".