109881791693 has 16 divisors (see below), whose sum is σ = 111936686400. Its totient is φ = 107851261440.

The previous prime is 109881791689. The next prime is 109881791711. The reversal of 109881791693 is 396197188901.

It is a cyclic number.

It is not a de Polignac number, because 109881791693 - 2² = 109881791689 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109881791993) 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, 4887005 + ... + 4909437.

It is an arithmetic number, because the mean of its divisors is an integer number (6996042900).

Almost surely, 2^109881791693 is an apocalyptic number.

It is an amenable number.

109881791693 is a deficient number, since it is larger than the sum of its proper divisors (2054894707).

109881791693 is a wasteful number, since it uses less digits than its factorization.

109881791693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22972.

The product of its (nonzero) digits is 5878656, while the sum is 62.

The spelling of 109881791693 in words is "one hundred nine billion, eight hundred eighty-one million, seven hundred ninety-one thousand, six hundred ninety-three".