319085391553 has 8 divisors (see below), whose sum is σ = 325516668008. Its totient is φ = 312709797504.

The previous prime is 319085391523. The next prime is 319085391613. The reversal of 319085391553 is 355193580913.

It can be written as a sum of positive squares in 4 ways, for example, as 67770667584 + 251314723969 = 260328^2 + 501313^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 319085391553 - 2³³ = 310495456961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 319085391553.

It is not an unprimeable number, because it can be changed into a prime (319085391503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13909026 + ... + 13931947.

It is an arithmetic number, because the mean of its divisors is an integer number (40689583501).

Almost surely, 2^319085391553 is an apocalyptic number.

It is an amenable number.

319085391553 is a deficient number, since it is larger than the sum of its proper divisors (6431276455).

319085391553 is a wasteful number, since it uses less digits than its factorization.

319085391553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27841203.

The product of its (nonzero) digits is 2187000, while the sum is 52.

The spelling of 319085391553 in words is "three hundred nineteen billion, eighty-five million, three hundred ninety-one thousand, five hundred fifty-three".