321917894466 has 64 divisors (see below), whose sum is σ = 761384448000. Its totient is φ = 88828096896.

The previous prime is 321917894449. The next prime is 321917894477. The reversal of 321917894466 is 664498719123.

It is a super-2 number, since 2×321917894466² (a number of 24 digits) contains 22 as substring.

It is a Curzon 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, 840666 + ... + 1162133.

It is an arithmetic number, because the mean of its divisors is an integer number (11896632000).

Almost surely, 2^321917894466 is an apocalyptic number.

321917894466 is an abundant number, since it is smaller than the sum of its proper divisors (439466553534).

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

321917894466 is a wasteful number, since it uses less digits than its factorization.

321917894466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002943.

The product of its digits is 15676416, while the sum is 60.

The spelling of 321917894466 in words is "three hundred twenty-one billion, nine hundred seventeen million, eight hundred ninety-four thousand, four hundred sixty-six".