109391913309 has 16 divisors (see below), whose sum is σ = 166747351680. Its totient is φ = 62489072640.

The previous prime is 109391913271. The next prime is 109391913313. The reversal of 109391913309 is 903319193901.

It is not a de Polignac number, because 109391913309 - 2⁹ = 109391912797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109391913329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 792624 + ... + 920345.

It is an arithmetic number, because the mean of its divisors is an integer number (10421709480).

Almost surely, 2^109391913309 is an apocalyptic number.

It is an amenable number.

109391913309 is a deficient number, since it is larger than the sum of its proper divisors (57355438371).

109391913309 is a wasteful number, since it uses less digits than its factorization.

109391913309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716020.

The product of its (nonzero) digits is 177147, while the sum is 48.

The spelling of 109391913309 in words is "one hundred nine billion, three hundred ninety-one million, nine hundred thirteen thousand, three hundred nine".