7144198116689 has 2 divisors, whose sum is σ = 7144198116690. Its totient is φ = 7144198116688.

The previous prime is 7144198116661. The next prime is 7144198116721. The reversal of 7144198116689 is 9866118914417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6473055408400 + 671142708289 = 2544220^2 + 819233^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7144198116689 is a prime.

It is not a weakly prime, because it can be changed into another prime (7144198116619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3572099058344 + 3572099058345.

It is an arithmetic number, because the mean of its divisors is an integer number (3572099058345).

Almost surely, 2^{7144198116689} is an apocalyptic number.

It is an amenable number.

7144198116689 is a deficient number, since it is larger than the sum of its proper divisors (1).

7144198116689 is an equidigital number, since it uses as much as digits as its factorization.

7144198116689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20901888, while the sum is 65.

The spelling of 7144198116689 in words is "seven trillion, one hundred forty-four billion, one hundred ninety-eight million, one hundred sixteen thousand, six hundred eighty-nine".