320428754185 has 16 divisors (see below), whose sum is σ = 386863335936. Its totient is φ = 254777485248.

The previous prime is 320428754179. The next prime is 320428754257. The reversal of 320428754185 is 581457824023.

It is a cyclic number.

It is not a de Polignac number, because 320428754185 - 2³⁷ = 182989800713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9131584 + ... + 9166606.

It is an arithmetic number, because the mean of its divisors is an integer number (24178958496).

Almost surely, 2^320428754185 is an apocalyptic number.

It is an amenable number.

320428754185 is a deficient number, since it is larger than the sum of its proper divisors (66434581751).

320428754185 is a wasteful number, since it uses less digits than its factorization.

320428754185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46152.

The product of its (nonzero) digits is 2150400, while the sum is 49.

The spelling of 320428754185 in words is "three hundred twenty billion, four hundred twenty-eight million, seven hundred fifty-four thousand, one hundred eighty-five".