6641108439 has 8 divisors (see below), whose sum is σ = 10119784320. Its totient is φ = 3794919096.

The previous prime is 6641108387. The next prime is 6641108447. The reversal of 6641108439 is 9348011466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6641108439 - 2⁷ = 6641108311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6641108439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6641118439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158121609 + ... + 158121650.

It is an arithmetic number, because the mean of its divisors is an integer number (1264973040).

Almost surely, 2^6641108439 is an apocalyptic number.

6641108439 is a deficient number, since it is larger than the sum of its proper divisors (3478675881).

6641108439 is a wasteful number, since it uses less digits than its factorization.

6641108439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316243269.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 6641108439 is about 81492.9962573472. The cubic root of 6641108439 is about 1879.6638563603.

The spelling of 6641108439 in words is "six billion, six hundred forty-one million, one hundred eight thousand, four hundred thirty-nine".