98111011188 has 48 divisors (see below), whose sum is σ = 232236232704. Its totient is φ = 32231078880.

The previous prime is 98111011177. The next prime is 98111011211. The reversal of 98111011188 is 88111011189.

It is a super-2 number, since 2×98111011188² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2439781 + ... + 2479667.

It is an arithmetic number, because the mean of its divisors is an integer number (4838254848).

Almost surely, 2^98111011188 is an apocalyptic number.

It is an amenable number.

98111011188 is an abundant number, since it is smaller than the sum of its proper divisors (134125221516).

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

98111011188 is a wasteful number, since it uses less digits than its factorization.

98111011188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42852 (or 42850 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 39.

Subtracting from 98111011188 its reverse (88111011189), we obtain a palindrome (9999999999).

The spelling of 98111011188 in words is "ninety-eight billion, one hundred eleven million, eleven thousand, one hundred eighty-eight".