320731480765 has 8 divisors (see below), whose sum is σ = 384880830048. Its totient is φ = 256583149200.

The previous prime is 320731480759. The next prime is 320731480801. The reversal of 320731480765 is 567084137023.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320731480765 - 2¹⁵ = 320731447997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011690 + ... + 1290340.

It is an arithmetic number, because the mean of its divisors is an integer number (48110103756).

Almost surely, 2^320731480765 is an apocalyptic number.

It is an amenable number.

320731480765 is a deficient number, since it is larger than the sum of its proper divisors (64149349283).

320731480765 is a wasteful number, since it uses less digits than its factorization.

320731480765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508859.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 320731480765 in words is "three hundred twenty billion, seven hundred thirty-one million, four hundred eighty thousand, seven hundred sixty-five".