1311646317879 has 8 divisors (see below), whose sum is σ = 1749987881712. Its totient is φ = 873867816320.

The previous prime is 1311646317841. The next prime is 1311646317881. The reversal of 1311646317879 is 9787136461131.

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 1311646317879 - 2¹¹ = 1311646315831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311646317809) 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, 140760132 + ... + 140769449.

It is an arithmetic number, because the mean of its divisors is an integer number (218748485214).

Almost surely, 2^{1311646317879} is an apocalyptic number.

1311646317879 is a deficient number, since it is larger than the sum of its proper divisors (438341563833).

1311646317879 is a wasteful number, since it uses less digits than its factorization.

1311646317879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281531137.

The product of its digits is 4572288, while the sum is 57.

The spelling of 1311646317879 in words is "one trillion, three hundred eleven billion, six hundred forty-six million, three hundred seventeen thousand, eight hundred seventy-nine".