1325238310644 has 24 divisors (see below), whose sum is σ = 3191971845888. Its totient is φ = 427496229120.

The previous prime is 1325238310619. The next prime is 1325238310703. The reversal of 1325238310644 is 4460138325231.

It is a junction number, because it is equal to n+sod(n) for n = 1325238310596 and 1325238310605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1781233917 + ... + 1781234660.

It is an arithmetic number, because the mean of its divisors is an integer number (132998826912).

Almost surely, 2^{1325238310644} is an apocalyptic number.

It is an amenable number.

1325238310644 is an abundant number, since it is smaller than the sum of its proper divisors (1866733535244).

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

1325238310644 is a wasteful number, since it uses less digits than its factorization.

1325238310644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562468615 (or 3562468613 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 1325238310644 in words is "one trillion, three hundred twenty-five billion, two hundred thirty-eight million, three hundred ten thousand, six hundred forty-four".