109188813840 has 80 divisors (see below), whose sum is σ = 338557795200. Its totient is φ = 29110782976.

The previous prime is 109188813827. The next prime is 109188813869. The reversal of 109188813840 is 48318881901.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1134316 + ... + 1226804.

It is an arithmetic number, because the mean of its divisors is an integer number (4231972440).

Almost surely, 2^109188813840 is an apocalyptic number.

109188813840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109188813840 is an abundant number, since it is smaller than the sum of its proper divisors (229368981360).

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

109188813840 is a wasteful number, since it uses less digits than its factorization.

109188813840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97424 (or 97418 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 51.

The spelling of 109188813840 in words is "one hundred nine billion, one hundred eighty-eight million, eight hundred thirteen thousand, eight hundred forty".