321995204854852 has 72 divisors (see below), whose sum is σ = 584254896462720. Its totient is φ = 155269902715200.

The previous prime is 321995204854849. The next prime is 321995204854861. The reversal of 321995204854852 is 258458402599123.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1356924838 + ... + 1357162114.

It is an arithmetic number, because the mean of its divisors is an integer number (8114651339760).

Almost surely, 2^{321995204854852} is an apocalyptic number.

It is an amenable number.

321995204854852 is a deficient number, since it is larger than the sum of its proper divisors (262259691607868).

321995204854852 is a wasteful number, since it uses less digits than its factorization.

321995204854852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238553 (or 238520 counting only the distinct ones).

The product of its (nonzero) digits is 248832000, while the sum is 67.

The spelling of 321995204854852 in words is "three hundred twenty-one trillion, nine hundred ninety-five billion, two hundred four million, eight hundred fifty-four thousand, eight hundred fifty-two".