6898955549 has 2 divisors, whose sum is σ = 6898955550. Its totient is φ = 6898955548.

The previous prime is 6898955513. The next prime is 6898955587. The reversal of 6898955549 is 9455598986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6726952324 + 172003225 = 82018^2 + 13115^2 .

It is a cyclic number.

It is not a de Polignac number, because 6898955549 - 2³² = 2603988253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6898955599) 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, 3449477774 + 3449477775.

It is an arithmetic number, because the mean of its divisors is an integer number (3449477775).

Almost surely, 2^6898955549 is an apocalyptic number.

It is an amenable number.

6898955549 is a deficient number, since it is larger than the sum of its proper divisors (1).

6898955549 is an equidigital number, since it uses as much as digits as its factorization.

6898955549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968000, while the sum is 68.

The square root of 6898955549 is about 83059.9515350208. The cubic root of 6898955549 is about 1903.6821989949.

The spelling of 6898955549 in words is "six billion, eight hundred ninety-eight million, nine hundred fifty-five thousand, five hundred forty-nine".