813333334068 has 54 divisors (see below), whose sum is σ = 2080995190274. Its totient is φ = 267844630752.

The previous prime is 813333334067. The next prime is 813333334069. The reversal of 813333334068 is 860433333318.

It is an interprime number because it is at equal distance from previous prime (813333334067) and next prime (813333334069).

It can be written as a sum of positive squares in only one way, i.e., 704975178384 + 108358155684 = 839628^2 + 329178^2 .

It is a super-2 number, since 2×813333334068² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813333334067) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1391755 + ... + 1887762.

Almost surely, 2^813333334068 is an apocalyptic number.

It is an amenable number.

813333334068 is an abundant number, since it is smaller than the sum of its proper divisors (1267661856206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

813333334068 is a wasteful number, since it uses less digits than its factorization.

813333334068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279693 (or 3279605 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 45.

The spelling of 813333334068 in words is "eight hundred thirteen billion, three hundred thirty-three million, three hundred thirty-four thousand, sixty-eight".