1325381289960 has 512 divisors, whose sum is σ = 5081687654400. Its totient is φ = 270608532480.

The previous prime is 1325381289959. The next prime is 1325381289989. The reversal of 1325381289960 is 699821835231.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1325381289960.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 57198297 + ... + 57221463.

It is an arithmetic number, because the mean of its divisors is an integer number (9925171200).

Almost surely, 2^{1325381289960} is an apocalyptic number.

1325381289960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1325381289960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2540843827200).

1325381289960 is an abundant number, since it is smaller than the sum of its proper divisors (3756306364440).

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

1325381289960 is a wasteful number, since it uses less digits than its factorization.

1325381289960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23258 (or 23228 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 57.

The spelling of 1325381289960 in words is "one trillion, three hundred twenty-five billion, three hundred eighty-one million, two hundred eighty-nine thousand, nine hundred sixty".