109813545688 has 32 divisors (see below), whose sum is σ = 256706991360. Its totient is φ = 42784498080.

The previous prime is 109813545649. The next prime is 109813545691. The reversal of 109813545688 is 886545318901.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89133756 + ... + 89134987.

It is an arithmetic number, because the mean of its divisors is an integer number (8022093480).

Almost surely, 2^109813545688 is an apocalyptic number.

It is an amenable number.

109813545688 is an abundant number, since it is smaller than the sum of its proper divisors (146893445672).

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

109813545688 is a wasteful number, since it uses less digits than its factorization.

109813545688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178268767 (or 178268763 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 58.

The spelling of 109813545688 in words is "one hundred nine billion, eight hundred thirteen million, five hundred forty-five thousand, six hundred eighty-eight".