6868650989 has 2 divisors, whose sum is σ = 6868650990. Its totient is φ = 6868650988.

The previous prime is 6868650983. The next prime is 6868651033. The reversal of 6868650989 is 9890568686.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6481860100 + 386790889 = 80510^2 + 19667^2 .

It is a cyclic number.

It is not a de Polignac number, because 6868650989 - 2¹⁶ = 6868585453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6868650983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3434325494 + 3434325495.

It is an arithmetic number, because the mean of its divisors is an integer number (3434325495).

Almost surely, 2^6868650989 is an apocalyptic number.

It is an amenable number.

6868650989 is a deficient number, since it is larger than the sum of its proper divisors (1).

6868650989 is an equidigital number, since it uses as much as digits as its factorization.

6868650989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44789760, while the sum is 65.

The square root of 6868650989 is about 82877.3249387310. The cubic root of 6868650989 is about 1900.8907170863.

The spelling of 6868650989 in words is "six billion, eight hundred sixty-eight million, six hundred fifty thousand, nine hundred eighty-nine".