813285582319 has 8 divisors (see below), whose sum is σ = 929475778688. Its totient is φ = 697097021400.

The previous prime is 813285582301. The next prime is 813285582337. The reversal of 813285582319 is 913285582318.

It is an interprime number because it is at equal distance from previous prime (813285582301) and next prime (813285582337).

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 813285582319 - 2⁵ = 813285582287 is a prime.

It is a super-2 number, since 2×813285582319² (a number of 25 digits) contains 22 as substring.

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 813285582319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813285582719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964144 + ... + 1598794.

It is an arithmetic number, because the mean of its divisors is an integer number (116184472336).

Almost surely, 2^813285582319 is an apocalyptic number.

813285582319 is a deficient number, since it is larger than the sum of its proper divisors (116190196369).

813285582319 is a wasteful number, since it uses less digits than its factorization.

813285582319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817725.

The product of its digits is 4147200, while the sum is 55.

Subtracting 813285582319 from its reverse (913285582318), we obtain a palindrome (99999999999).

It can be divided in two parts, 81 and 3285582319, that added together give a square (3285582400 = 57320²).

The spelling of 813285582319 in words is "eight hundred thirteen billion, two hundred eighty-five million, five hundred eighty-two thousand, three hundred nineteen".