320705480786 has 8 divisors (see below), whose sum is σ = 481062481164. Its totient is φ = 160351320400.

The previous prime is 320705480783. The next prime is 320705480801. The reversal of 320705480786 is 687084507023.

It can be written as a sum of positive squares in 2 ways, for example, as 269553064225 + 51152416561 = 519185^2 + 226169^2 .

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

It is not an unprimeable number, because it can be changed into a prime (320705480783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400745 + ... + 895548.

Almost surely, 2^320705480786 is an apocalyptic number.

320705480786 is a deficient number, since it is larger than the sum of its proper divisors (160357000378).

320705480786 is a wasteful number, since it uses less digits than its factorization.

320705480786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419996.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 320705480786 in words is "three hundred twenty billion, seven hundred five million, four hundred eighty thousand, seven hundred eighty-six".