1325481370272 has 144 divisors (see below), whose sum is σ = 3790923226272. Its totient is φ = 439303104000.

The previous prime is 1325481370097. The next prime is 1325481370349. The reversal of 1325481370272 is 2720731845231.

1325481370272 is a `hidden beast` number, since 1 + 3 + 2 + 5 + 4 + 8 + 1 + 370 + 272 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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 23 ways as a sum of consecutive naturals, for example, 42417438 + ... + 42448674.

It is an arithmetic number, because the mean of its divisors is an integer number (26325855738).

Almost surely, 2^{1325481370272} is an apocalyptic number.

1325481370272 is a gapful number since it is divisible by the number (12) 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 1325481370272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1895461613136).

1325481370272 is an abundant number, since it is smaller than the sum of its proper divisors (2465441856000).

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

1325481370272 is a wasteful number, since it uses less digits than its factorization.

1325481370272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32091 (or 32080 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 1325481370272 in words is "one trillion, three hundred twenty-five billion, four hundred eighty-one million, three hundred seventy thousand, two hundred seventy-two".