6918699036917 has 2 divisors, whose sum is σ = 6918699036918. Its totient is φ = 6918699036916.

The previous prime is 6918699036871. The next prime is 6918699036923. The reversal of 6918699036917 is 7196309968196.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3624641014801 + 3294058022116 = 1903849^2 + 1814954^2 .

It is a cyclic number.

It is not a de Polignac number, because 6918699036917 - 2²⁴ = 6918682259701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6918699036937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3459349518458 + 3459349518459.

It is an arithmetic number, because the mean of its divisors is an integer number (3459349518459).

Almost surely, 2^{6918699036917} is an apocalyptic number.

It is an amenable number.

6918699036917 is a deficient number, since it is larger than the sum of its proper divisors (1).

6918699036917 is an equidigital number, since it uses as much as digits as its factorization.

6918699036917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 238085568, while the sum is 74.

The spelling of 6918699036917 in words is "six trillion, nine hundred eighteen billion, six hundred ninety-nine million, thirty-six thousand, nine hundred seventeen".