6643319310769 has 8 divisors (see below), whose sum is σ = 6775105228992. Its totient is φ = 6511771921200.

The previous prime is 6643319310731. The next prime is 6643319310779. The reversal of 6643319310769 is 9670139133466.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6643319310769 is a prime.

It is a super-2 number, since 2×6643319310769² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6643319310779) 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, 59575909 + ... + 59687314.

It is an arithmetic number, because the mean of its divisors is an integer number (846888153624).

Almost surely, 2^{6643319310769} is an apocalyptic number.

It is an amenable number.

6643319310769 is a deficient number, since it is larger than the sum of its proper divisors (131785918223).

6643319310769 is a wasteful number, since it uses less digits than its factorization.

6643319310769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119264327.

The product of its (nonzero) digits is 13226976, while the sum is 58.

The spelling of 6643319310769 in words is "six trillion, six hundred forty-three billion, three hundred nineteen million, three hundred ten thousand, seven hundred sixty-nine".