108988561858 has 32 divisors (see below), whose sum is σ = 188879428800. Its totient is φ = 46615349760.

The previous prime is 108988561823. The next prime is 108988561861. The reversal of 108988561858 is 858165889801.

It is a junction number, because it is equal to n+sod(n) for n = 108988561793 and 108988561802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1707385 + ... + 1770067.

It is an arithmetic number, because the mean of its divisors is an integer number (5902482150).

Almost surely, 2^108988561858 is an apocalyptic number.

108988561858 is a deficient number, since it is larger than the sum of its proper divisors (79890866942).

108988561858 is a wasteful number, since it uses less digits than its factorization.

108988561858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67362.

The product of its (nonzero) digits is 44236800, while the sum is 67.

The spelling of 108988561858 in words is "one hundred eight billion, nine hundred eighty-eight million, five hundred sixty-one thousand, eight hundred fifty-eight".