698409241279 has 2 divisors, whose sum is σ = 698409241280. Its totient is φ = 698409241278.

The previous prime is 698409241259. The next prime is 698409241291. The reversal of 698409241279 is 972142904896.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 698409241279 - 2⁵ = 698409241247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698409241259) 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, 349204620639 + 349204620640.

It is an arithmetic number, because the mean of its divisors is an integer number (349204620640).

Almost surely, 2^698409241279 is an apocalyptic number.

698409241279 is a deficient number, since it is larger than the sum of its proper divisors (1).

698409241279 is an equidigital number, since it uses as much as digits as its factorization.

698409241279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15676416, while the sum is 61.

The spelling of 698409241279 in words is "six hundred ninety-eight billion, four hundred nine million, two hundred forty-one thousand, two hundred seventy-nine".