325645875731 has 8 divisors (see below), whose sum is σ = 355279219200. Its totient is φ = 296017394440.

The previous prime is 325645875721. The next prime is 325645875791. The reversal of 325645875731 is 137578546523.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 325645875731 - 2²² = 325641681427 is a prime.

It is a super-2 number, since 2×325645875731² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325645875721) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1074791 + ... + 1344048.

It is an arithmetic number, because the mean of its divisors is an integer number (44409902400).

Almost surely, 2^325645875731 is an apocalyptic number.

325645875731 is a deficient number, since it is larger than the sum of its proper divisors (29633343469).

325645875731 is a wasteful number, since it uses less digits than its factorization.

325645875731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431089.

The product of its digits is 21168000, while the sum is 56.

The spelling of 325645875731 in words is "three hundred twenty-five billion, six hundred forty-five million, eight hundred seventy-five thousand, seven hundred thirty-one".