6913944910657 has 4 divisors (see below), whose sum is σ = 7277836748080. Its totient is φ = 6550053073236.

The previous prime is 6913944910637. The next prime is 6913944910667. The reversal of 6913944910657 is 7560194493196.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6913944910657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6913944910637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181945918683 + ... + 181945918720.

It is an arithmetic number, because the mean of its divisors is an integer number (1819459187020).

Almost surely, 2^{6913944910657} is an apocalyptic number.

It is an amenable number.

6913944910657 is a deficient number, since it is larger than the sum of its proper divisors (363891837423).

6913944910657 is a wasteful number, since it uses less digits than its factorization.

6913944910657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363891837422.

The product of its (nonzero) digits is 44089920, while the sum is 64.

The spelling of 6913944910657 in words is "six trillion, nine hundred thirteen billion, nine hundred forty-four million, nine hundred ten thousand, six hundred fifty-seven".