321627432804 has 12 divisors (see below), whose sum is σ = 750464009904. Its totient is φ = 107209144264.

The previous prime is 321627432793. The next prime is 321627432871. The reversal of 321627432804 is 408234726123.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13401143022 + ... + 13401143045.

It is an arithmetic number, because the mean of its divisors is an integer number (62538667492).

Almost surely, 2^321627432804 is an apocalyptic number.

It is an amenable number.

321627432804 is an abundant number, since it is smaller than the sum of its proper divisors (428836577100).

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

321627432804 is a wasteful number, since it uses less digits than its factorization.

321627432804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26802286074 (or 26802286072 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 321627432804 in words is "three hundred twenty-one billion, six hundred twenty-seven million, four hundred thirty-two thousand, eight hundred four".