6978979379613 has 16 divisors (see below), whose sum is σ = 9418460567040. Its totient is φ = 4596087968304.

The previous prime is 6978979379609. The next prime is 6978979379657. The reversal of 6978979379613 is 3169739798796.

It is not a de Polignac number, because 6978979379613 - 2² = 6978979379609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6978979379683) 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, 708720 + ... + 3802662.

It is an arithmetic number, because the mean of its divisors is an integer number (588653785440).

Almost surely, 2^{6978979379613} is an apocalyptic number.

It is an amenable number.

6978979379613 is a deficient number, since it is larger than the sum of its proper divisors (2439481187427).

6978979379613 is a wasteful number, since it uses less digits than its factorization.

6978979379613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103088.

The product of its digits is 5833096416, while the sum is 84.

The spelling of 6978979379613 in words is "six trillion, nine hundred seventy-eight billion, nine hundred seventy-nine million, three hundred seventy-nine thousand, six hundred thirteen".