108910891100 has 72 divisors (see below), whose sum is σ = 257903816016. Its totient is φ = 39591360000.

The previous prime is 108910891099. The next prime is 108910891109. The reversal of 108910891100 is 1198019801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108910891109) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3881120 + ... + 3909080.

Almost surely, 2^108910891100 is an apocalyptic number.

108910891100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108910891100 is an abundant number, since it is smaller than the sum of its proper divisors (148992924916).

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

108910891100 is a wasteful number, since it uses less digits than its factorization.

108910891100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31527 (or 31520 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 38.

The spelling of 108910891100 in words is "one hundred eight billion, nine hundred ten million, eight hundred ninety-one thousand, one hundred".