321389849392 has 20 divisors (see below), whose sum is σ = 637174063240. Its totient is φ = 156957833088.

The previous prime is 321389849359. The next prime is 321389849519. The reversal of 321389849392 is 293948983123.

It is a self number, because there is not a number n which added to its sum of digits gives 321389849392.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233567517 + ... + 233568892.

It is an arithmetic number, because the mean of its divisors is an integer number (31858703162).

Almost surely, 2^321389849392 is an apocalyptic number.

It is an amenable number.

321389849392 is a deficient number, since it is larger than the sum of its proper divisors (315784213848).

321389849392 is a wasteful number, since it uses less digits than its factorization.

321389849392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467136460 (or 467136454 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 61.

The spelling of 321389849392 in words is "three hundred twenty-one billion, three hundred eighty-nine million, eight hundred forty-nine thousand, three hundred ninety-two".