108940711729 has 4 divisors (see below), whose sum is σ = 110319708160. Its totient is φ = 107561715300.

The previous prime is 108940711723. The next prime is 108940711783. The reversal of 108940711729 is 927117049801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 927117049801 = 229 ⋅4048546069.

It is not a de Polignac number, because 108940711729 - 2¹⁷ = 108940580657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108940711723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689498097 + ... + 689498254.

It is an arithmetic number, because the mean of its divisors is an integer number (27579927040).

Almost surely, 2^108940711729 is an apocalyptic number.

It is an amenable number.

108940711729 is a deficient number, since it is larger than the sum of its proper divisors (1378996431).

108940711729 is an equidigital number, since it uses as much as digits as its factorization.

108940711729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378996430.

The product of its (nonzero) digits is 254016, while the sum is 49.

The spelling of 108940711729 in words is "one hundred eight billion, nine hundred forty million, seven hundred eleven thousand, seven hundred twenty-nine".