6709581013944 has 96 divisors (see below), whose sum is σ = 17373697445520. Its totient is φ = 2159236800000.

The previous prime is 6709581013939. The next prime is 6709581013951. The reversal of 6709581013944 is 4493101859076.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9364444 + ... + 10055444.

Almost surely, 2^{6709581013944} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6709581013944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8686848722760).

6709581013944 is an abundant number, since it is smaller than the sum of its proper divisors (10664116431576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6709581013944 is a wasteful number, since it uses less digits than its factorization.

6709581013944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691493 (or 691458 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 6709581013944 in words is "six trillion, seven hundred nine billion, five hundred eighty-one million, thirteen thousand, nine hundred forty-four".