6759644649989 has 16 divisors (see below), whose sum is σ = 8427705077760. Its totient is φ = 5267195469360.

The previous prime is 6759644649973. The next prime is 6759644650001. The reversal of 6759644649989 is 9899464469576.

It is not a de Polignac number, because 6759644649989 - 2⁴ = 6759644649973 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 6759644649989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6759644649389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7019672 + ... + 7924334.

It is an arithmetic number, because the mean of its divisors is an integer number (526731567360).

Almost surely, 2^{6759644649989} is an apocalyptic number.

It is an amenable number.

6759644649989 is a deficient number, since it is larger than the sum of its proper divisors (1668060427771).

6759644649989 is a wasteful number, since it uses less digits than its factorization.

6759644649989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001720.

The product of its digits is 25395793920, while the sum is 86.

The spelling of 6759644649989 in words is "six trillion, seven hundred fifty-nine billion, six hundred forty-four million, six hundred forty-nine thousand, nine hundred eighty-nine".