7868000989 has 2 divisors, whose sum is σ = 7868000990. Its totient is φ = 7868000988.

The previous prime is 7868000969. The next prime is 7868001041. The reversal of 7868000989 is 9890008687.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7511168889 + 356832100 = 86667^2 + 18890^2 .

It is a cyclic number.

It is not a de Polignac number, because 7868000989 - 2⁵ = 7868000957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7868000929) 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, 3934000494 + 3934000495.

It is an arithmetic number, because the mean of its divisors is an integer number (3934000495).

Almost surely, 2^7868000989 is an apocalyptic number.

It is an amenable number.

7868000989 is a deficient number, since it is larger than the sum of its proper divisors (1).

7868000989 is an equidigital number, since it uses as much as digits as its factorization.

7868000989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The square root of 7868000989 is about 88701.7530210086. The cubic root of 7868000989 is about 1988.9390225774.

The spelling of 7868000989 in words is "seven billion, eight hundred sixty-eight million, nine hundred eighty-nine", and thus it is an aban number.