109809637206 has 32 divisors (see below), whose sum is σ = 227232159840. Its totient is φ = 35334840576.

The previous prime is 109809637193. The next prime is 109809637241. The reversal of 109809637206 is 602736908901.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 998170 + ... + 1102706.

It is an arithmetic number, because the mean of its divisors is an integer number (7101004995).

Almost surely, 2^109809637206 is an apocalyptic number.

109809637206 is an abundant number, since it is smaller than the sum of its proper divisors (117422522634).

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

109809637206 is a wasteful number, since it uses less digits than its factorization.

109809637206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110608.

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 109809637206 in words is "one hundred nine billion, eight hundred nine million, six hundred thirty-seven thousand, two hundred six".