321445052052405 has 32 divisors (see below), whose sum is σ = 517730822692608. Its totient is φ = 170297836992000.

The previous prime is 321445052052353. The next prime is 321445052052493. The reversal of 321445052052405 is 504250250544123.

It is not a de Polignac number, because 321445052052405 - 2¹⁴ = 321445052036021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91727175 + ... + 95167035.

It is an arithmetic number, because the mean of its divisors is an integer number (16179088209144).

Almost surely, 2^{321445052052405} is an apocalyptic number.

It is an amenable number.

321445052052405 is a deficient number, since it is larger than the sum of its proper divisors (196285770640203).

321445052052405 is a wasteful number, since it uses less digits than its factorization.

321445052052405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3481277.

The product of its (nonzero) digits is 960000, while the sum is 42.

The spelling of 321445052052405 in words is "three hundred twenty-one trillion, four hundred forty-five billion, fifty-two million, fifty-two thousand, four hundred five".