812004658213 has 12 divisors (see below), whose sum is σ = 953747502240. Its totient is φ = 689246668152.

The previous prime is 812004658151. The next prime is 812004658219. The reversal of 812004658213 is 312856400218.

It is a de Polignac number, because none of the positive numbers 2^k-812004658213 is a prime.

It is a super-2 number, since 2×812004658213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812004658219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80439243 + ... + 80449336.

It is an arithmetic number, because the mean of its divisors is an integer number (79478958520).

Almost surely, 2^812004658213 is an apocalyptic number.

It is an amenable number.

812004658213 is a deficient number, since it is larger than the sum of its proper divisors (141742844027).

812004658213 is a wasteful number, since it uses less digits than its factorization.

812004658213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160888696 (or 160888689 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 812004658213 in words is "eight hundred twelve billion, four million, six hundred fifty-eight thousand, two hundred thirteen".