1298109597844 has 12 divisors (see below), whose sum is σ = 2271755044468. Its totient is φ = 649036728000.

The previous prime is 1298109597833. The next prime is 1298109597881. The reversal of 1298109597844 is 4487959018921.

It can be written as a sum of positive squares in 2 ways, for example, as 430417347844 + 867692250000 = 656062^2 + 931500^2 .

It is a super-2 number, since 2×1298109597844² (a number of 25 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 1298109597844.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 4355457 + ... + 4643944.

Almost surely, 2^{1298109597844} is an apocalyptic number.

It is an amenable number.

1298109597844 is a deficient number, since it is larger than the sum of its proper divisors (973645446624).

1298109597844 is a wasteful number, since it uses less digits than its factorization.

1298109597844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9035466 (or 9035464 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 67.

The spelling of 1298109597844 in words is "one trillion, two hundred ninety-eight billion, one hundred nine million, five hundred ninety-seven thousand, eight hundred forty-four".