1325042144646 has 96 divisors (see below), whose sum is σ = 2976161045760. Its totient is φ = 392850469440.

The previous prime is 1325042144603. The next prime is 1325042144677. The reversal of 1325042144646 is 6464412405231.

It is a junction number, because it is equal to n+sod(n) for n = 1325042144598 and 1325042144607.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 13765641 + ... + 13861563.

It is an arithmetic number, because the mean of its divisors is an integer number (31001677560).

Almost surely, 2^{1325042144646} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1325042144646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1488080522880).

1325042144646 is an abundant number, since it is smaller than the sum of its proper divisors (1651118901114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1325042144646 is a wasteful number, since it uses less digits than its factorization.

1325042144646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96362 (or 96351 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

Adding to 1325042144646 its reverse (6464412405231), we get a palindrome (7789454549877).

The spelling of 1325042144646 in words is "one trillion, three hundred twenty-five billion, forty-two million, one hundred forty-four thousand, six hundred forty-six".