108989544658 has 8 divisors (see below), whose sum is σ = 163500163452. Its totient is φ = 54489490176.

The previous prime is 108989544647. The next prime is 108989544673. The reversal of 108989544658 is 856445989801.

It can be written as a sum of positive squares in 2 ways, for example, as 66622320769 + 42367223889 = 258113^2 + 205833^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 108989544593 and 108989544602.

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, 2615235 + ... + 2656582.

Almost surely, 2^108989544658 is an apocalyptic number.

108989544658 is a deficient number, since it is larger than the sum of its proper divisors (54510618794).

108989544658 is a wasteful number, since it uses less digits than its factorization.

108989544658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5282156.

The product of its (nonzero) digits is 99532800, while the sum is 67.

The spelling of 108989544658 in words is "one hundred eight billion, nine hundred eighty-nine million, five hundred forty-four thousand, six hundred fifty-eight".