1325289948539 has 4 divisors (see below), whose sum is σ = 1403248180824. Its totient is φ = 1247331716256.

The previous prime is 1325289948527. The next prime is 1325289948569. The reversal of 1325289948539 is 9358499825231.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1325289948539 - 2²⁴ = 1325273171323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1325289948569) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 38979116117 + ... + 38979116150.

It is an arithmetic number, because the mean of its divisors is an integer number (350812045206).

Almost surely, 2^{1325289948539} is an apocalyptic number.

1325289948539 is a deficient number, since it is larger than the sum of its proper divisors (77958232285).

1325289948539 is an equidigital number, since it uses as much as digits as its factorization.

1325289948539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77958232284.

The product of its digits is 167961600, while the sum is 68.

The spelling of 1325289948539 in words is "one trillion, three hundred twenty-five billion, two hundred eighty-nine million, nine hundred forty-eight thousand, five hundred thirty-nine".