325805405643 has 24 divisors (see below), whose sum is σ = 474301651200. Its totient is φ = 215502260400.

The previous prime is 325805405623. The next prime is 325805405713. The reversal of 325805405643 is 346504508523.

325805405643 is a `hidden beast` number, since 3 + 2 + 5 + 80 + 5 + 4 + 0 + 564 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-325805405643 is a prime.

It is a super-2 number, since 2×325805405643² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (325805405623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 972808 + ... + 1264106.

It is an arithmetic number, because the mean of its divisors is an integer number (19762568800).

Almost surely, 2^325805405643 is an apocalyptic number.

325805405643 is a deficient number, since it is larger than the sum of its proper divisors (148496245557).

325805405643 is a wasteful number, since it uses less digits than its factorization.

325805405643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292279 (or 292276 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 325805405643 in words is "three hundred twenty-five billion, eight hundred five million, four hundred five thousand, six hundred forty-three".