98631216618 has 32 divisors (see below), whose sum is σ = 224551706112. Its totient is φ = 28588758000.

The previous prime is 98631216617. The next prime is 98631216647. The reversal of 98631216618 is 81661213689.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (98631216611) 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 15 ways as a sum of consecutive naturals, for example, 32485708 + ... + 32488743.

It is an arithmetic number, because the mean of its divisors is an integer number (7017240816).

Almost surely, 2^98631216618 is an apocalyptic number.

98631216618 is an abundant number, since it is smaller than the sum of its proper divisors (125920489494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98631216618 is a wasteful number, since it uses less digits than its factorization.

98631216618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64974490.

The product of its digits is 746496, while the sum is 51.

The spelling of 98631216618 in words is "ninety-eight billion, six hundred thirty-one million, two hundred sixteen thousand, six hundred eighteen".