6888686868794 has 8 divisors (see below), whose sum is σ = 10390118868948. Its totient is φ = 3425313912480.

The previous prime is 6888686868737. The next prime is 6888686868851. The reversal of 6888686868794 is 4978686868886.

It is an interprime number because it is at equal distance from previous prime (6888686868737) and next prime (6888686868851).

It can be written as a sum of positive squares in 2 ways, for example, as 6767349596569 + 121337272225 = 2601413^2 + 348335^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9514760507 + ... + 9514761230.

Almost surely, 2^{6888686868794} is an apocalyptic number.

6888686868794 is a deficient number, since it is larger than the sum of its proper divisors (3501432000154).

6888686868794 is a wasteful number, since it uses less digits than its factorization.

6888686868794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19029521920.

The product of its digits is 85614133248, while the sum is 92.

Adding to 6888686868794 its sum of digits (92), we get a palindrome (6888686868886).

The spelling of 6888686868794 in words is "six trillion, eight hundred eighty-eight billion, six hundred eighty-six million, eight hundred sixty-eight thousand, seven hundred ninety-four".