6888899999 has 2 divisors, whose sum is σ = 6888900000.
Its totient is φ = 6888899998.
The previous prime is 6888899981. The next prime is 6888900017. The reversal of 6888899999 is 9999988886.
It is a balanced prime because it is at equal distance from previous prime (6888899981) and next prime (6888900017).
It is a cyclic number.
It is not a de Polignac number, because 6888899999 - 212 = 6888895903 is a prime.
It is a Sophie Germain prime.
6888899999 is a modest number, since divided by 99999 gives 68888 as remainder.
It is a plaindrome in base 10.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (6888899929) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3444449999 + 3444450000.
It is an arithmetic number, because the mean of its divisors is an integer number (3444450000).
Almost surely, 26888899999 is an apocalyptic number.
6888899999 is a deficient number, since it is larger than the sum of its proper divisors (1).
6888899999 is an equidigital number, since it uses as much as digits as its factorization.
6888899999 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1451188224, while the sum is 83.
The square root of 6888899999 is about 82999.3975821512.
The cubic root of 6888899999 is about 1902.7568473560.
The spelling of 6888899999 in words is "six billion, eight hundred eighty-eight million, eight hundred ninety-nine thousand, nine hundred ninety-nine".