321865339494 has 64 divisors (see below), whose sum is σ = 694488453120. Its totient is φ = 99112608000.

The previous prime is 321865339489. The next prime is 321865339501. The reversal of 321865339494 is 494933568123.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 9850504 + ... + 9883124.

It is an arithmetic number, because the mean of its divisors is an integer number (10851382080).

Almost surely, 2^321865339494 is an apocalyptic number.

321865339494 is an abundant number, since it is smaller than the sum of its proper divisors (372623113626).

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

321865339494 is a wasteful number, since it uses less digits than its factorization.

321865339494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34797.

The product of its digits is 16796160, while the sum is 57.

The spelling of 321865339494 in words is "three hundred twenty-one billion, eight hundred sixty-five million, three hundred thirty-nine thousand, four hundred ninety-four".