298187428069 has 2 divisors, whose sum is σ = 298187428070. Its totient is φ = 298187428068.

The previous prime is 298187428003. The next prime is 298187428081. The reversal of 298187428069 is 960824781892.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 293141030625 + 5046397444 = 541425^2 + 71038^2 .

It is a cyclic number.

It is not a de Polignac number, because 298187428069 - 2¹¹ = 298187426021 is a prime.

It is a super-2 number, since 2×298187428069² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 298187428069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (298187428369) 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, 149093714034 + 149093714035.

It is an arithmetic number, because the mean of its divisors is an integer number (149093714035).

Almost surely, 2^298187428069 is an apocalyptic number.

It is an amenable number.

298187428069 is a deficient number, since it is larger than the sum of its proper divisors (1).

298187428069 is an equidigital number, since it uses as much as digits as its factorization.

298187428069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27869184, while the sum is 64.

The spelling of 298187428069 in words is "two hundred ninety-eight billion, one hundred eighty-seven million, four hundred twenty-eight thousand, sixty-nine".