320344028327792 has 80 divisors (see below), whose sum is σ = 710167920576192. Its totient is φ = 137128829859840.

The previous prime is 320344028327783. The next prime is 320344028327821. The reversal of 320344028327792 is 297723820443023.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343531292 + ... + 344462532.

Almost surely, 2^{320344028327792} is an apocalyptic number.

It is an amenable number.

320344028327792 is an abundant number, since it is smaller than the sum of its proper divisors (389823892248400).

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

320344028327792 is a wasteful number, since it uses less digits than its factorization.

320344028327792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934866 (or 934860 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 56.

The spelling of 320344028327792 in words is "three hundred twenty trillion, three hundred forty-four billion, twenty-eight million, three hundred twenty-seven thousand, seven hundred ninety-two".