319306891328 has 14 divisors (see below), whose sum is σ = 633624612606. Its totient is φ = 159653445632.

The previous prime is 319306891201. The next prime is 319306891349. The reversal of 319306891328 is 823198603913.

It can be written as a sum of positive squares in only one way, i.e., 221758111744 + 97548779584 = 470912^2 + 312328^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 319306891328.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2494585025 + ... + 2494585152.

Almost surely, 2^319306891328 is an apocalyptic number.

It is an amenable number.

319306891328 is a deficient number, since it is larger than the sum of its proper divisors (314317721278).

319306891328 is an equidigital number, since it uses as much as digits as its factorization.

319306891328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4989170189 (or 4989170179 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 319306891328 in words is "three hundred nineteen billion, three hundred six million, eight hundred ninety-one thousand, three hundred twenty-eight".