102000988647689 has 2 divisors, whose sum is σ = 102000988647690. Its totient is φ = 102000988647688.

The previous prime is 102000988647683. The next prime is 102000988647697. The reversal of 102000988647689 is 986746889000201.

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., 95748573414400 + 6252415233289 = 9785120^2 + 2500483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102000988647689 is a prime.

It is not a weakly prime, because it can be changed into another prime (102000988647683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000494323844 + 51000494323845.

It is an arithmetic number, because the mean of its divisors is an integer number (51000494323845).

Almost surely, 2^{102000988647689} is an apocalyptic number.

It is an amenable number.

102000988647689 is a deficient number, since it is larger than the sum of its proper divisors (1).

102000988647689 is an equidigital number, since it uses as much as digits as its factorization.

102000988647689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 83607552, while the sum is 68.

The spelling of 102000988647689 in words is "one hundred two trillion, nine hundred eighty-eight million, six hundred forty-seven thousand, six hundred eighty-nine".