6979796087839 has 2 divisors, whose sum is σ = 6979796087840. Its totient is φ = 6979796087838.

The previous prime is 6979796087809. The next prime is 6979796087843. The reversal of 6979796087839 is 9387806979796.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6979796087839 - 2³¹ = 6977648604191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6979796087839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6979796087809) by changing a digit.

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 as a sum of consecutive naturals, namely, 3489898043919 + 3489898043920.

It is an arithmetic number, because the mean of its divisors is an integer number (3489898043920).

Almost surely, 2^{6979796087839} is an apocalyptic number.

6979796087839 is a deficient number, since it is larger than the sum of its proper divisors (1).

6979796087839 is an equidigital number, since it uses as much as digits as its factorization.

6979796087839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15554923776, while the sum is 88.

It can be divided in two parts, 69797 and 96087839, that added together give a square (96157636 = 9806²).

The spelling of 6979796087839 in words is "six trillion, nine hundred seventy-nine billion, seven hundred ninety-six million, eighty-seven thousand, eight hundred thirty-nine".