6705440209123 has 8 divisors (see below), whose sum is σ = 6745621747392. Its totient is φ = 6665320729536.

The previous prime is 6705440209121. The next prime is 6705440209129. The reversal of 6705440209123 is 3219020445076.

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

It is a cyclic number.

It is not a de Polignac number, because 6705440209123 - 2¹ = 6705440209121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6705440209123.

It is not an unprimeable number, because it can be changed into a prime (6705440209121) 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, 15297915 + ... + 15730132.

It is an arithmetic number, because the mean of its divisors is an integer number (843202718424).

Almost surely, 2^{6705440209123} is an apocalyptic number.

6705440209123 is a deficient number, since it is larger than the sum of its proper divisors (40181538269).

6705440209123 is a wasteful number, since it uses less digits than its factorization.

6705440209123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31029341.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 6705440209123 in words is "six trillion, seven hundred five billion, four hundred forty million, two hundred nine thousand, one hundred twenty-three".