109609921236 has 96 divisors (see below), whose sum is σ = 261472159872. Its totient is φ = 35731537920.

The previous prime is 109609921207. The next prime is 109609921247. The reversal of 109609921236 is 632129906901.

109609921236 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39186990 + ... + 39189786.

It is an arithmetic number, because the mean of its divisors is an integer number (2723668332).

Almost surely, 2^109609921236 is an apocalyptic number.

It is an amenable number.

109609921236 is an abundant number, since it is smaller than the sum of its proper divisors (151862238636).

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

109609921236 is a wasteful number, since it uses less digits than its factorization.

109609921236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3289 (or 3287 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 48.

The spelling of 109609921236 in words is "one hundred nine billion, six hundred nine million, nine hundred twenty-one thousand, two hundred thirty-six".