1398269844329 has 4 divisors (see below), whose sum is σ = 1424652294276. Its totient is φ = 1371887394384.

The previous prime is 1398269844239. The next prime is 1398269844407. The reversal of 1398269844329 is 9234489628931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1156646475625 + 241623368704 = 1075475^2 + 491552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1398269844329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1398269844229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13191224894 + ... + 13191224999.

It is an arithmetic number, because the mean of its divisors is an integer number (356163073569).

Almost surely, 2^{1398269844329} is an apocalyptic number.

It is an amenable number.

1398269844329 is a deficient number, since it is larger than the sum of its proper divisors (26382449947).

1398269844329 is an equidigital number, since it uses as much as digits as its factorization.

1398269844329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26382449946.

The product of its digits is 161243136, while the sum is 68.

The spelling of 1398269844329 in words is "one trillion, three hundred ninety-eight billion, two hundred sixty-nine million, eight hundred forty-four thousand, three hundred twenty-nine".