1298159439424 has 21 divisors (see below), whose sum is σ = 2576053225201. Its totient is φ = 649075162240.

The previous prime is 1298159439403. The next prime is 1298159439433. The reversal of 1298159439424 is 4249349518921.

The square root of 1298159439424 is 1139368.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 894477109824 + 403682329600 = 945768^2 + 635360^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9043734 + ... + 9186154.

Almost surely, 2^{1298159439424} is an apocalyptic number.

1298159439424 is the 1139368-th square number.

It is an amenable number.

1298159439424 is a deficient number, since it is larger than the sum of its proper divisors (1277893785777).

1298159439424 is an frugal number, since it uses more digits than its factorization.

1298159439424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284854 (or 142423 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 61.

The spelling of 1298159439424 in words is "one trillion, two hundred ninety-eight billion, one hundred fifty-nine million, four hundred thirty-nine thousand, four hundred twenty-four".