2398857349289 has 16 divisors (see below), whose sum is σ = 2513476266000. Its totient is φ = 2286485397504.

The previous prime is 2398857349279. The next prime is 2398857349303. The reversal of 2398857349289 is 9829437588932.

It can be written as a sum of positive squares in 8 ways, for example, as 8379571600 + 2390477777689 = 91540^2 + 1546117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2398857349289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2398857349219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42737 + ... + 2190785.

It is an arithmetic number, because the mean of its divisors is an integer number (157092266625).

Almost surely, 2^{2398857349289} is an apocalyptic number.

2398857349289 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2398857349289 is a deficient number, since it is larger than the sum of its proper divisors (114618916711).

2398857349289 is a wasteful number, since it uses less digits than its factorization.

2398857349289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148572.

The product of its digits is 1881169920, while the sum is 77.

The spelling of 2398857349289 in words is "two trillion, three hundred ninety-eight billion, eight hundred fifty-seven million, three hundred forty-nine thousand, two hundred eighty-nine".