108218128388 has 24 divisors (see below), whose sum is σ = 189948193344. Its totient is φ = 53947460000.

The previous prime is 108218128379. The next prime is 108218128441. The reversal of 108218128388 is 883821812801.

It is a super-2 number, since 2×108218128388² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1784363 + ... + 1844013.

It is an arithmetic number, because the mean of its divisors is an integer number (7914508056).

Almost surely, 2^108218128388 is an apocalyptic number.

It is an amenable number.

108218128388 is a deficient number, since it is larger than the sum of its proper divisors (81730064956).

108218128388 is a wasteful number, since it uses less digits than its factorization.

108218128388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61003 (or 61001 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 50.

The spelling of 108218128388 in words is "one hundred eight billion, two hundred eighteen million, one hundred twenty-eight thousand, three hundred eighty-eight".