321406585476 has 12 divisors (see below), whose sum is σ = 749948699472. Its totient is φ = 107135528488.

The previous prime is 321406585469. The next prime is 321406585481. The reversal of 321406585476 is 674585604123.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 13391941050 + ... + 13391941073.

It is an arithmetic number, because the mean of its divisors is an integer number (62495724956).

Almost surely, 2^321406585476 is an apocalyptic number.

It is an amenable number.

321406585476 is an abundant number, since it is smaller than the sum of its proper divisors (428542113996).

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

321406585476 is a wasteful number, since it uses less digits than its factorization.

321406585476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26783882130 (or 26783882128 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 51.

The spelling of 321406585476 in words is "three hundred twenty-one billion, four hundred six million, five hundred eighty-five thousand, four hundred seventy-six".