812518133322 has 16 divisors (see below), whose sum is σ = 1857184304832. Its totient is φ = 232148038080.

The previous prime is 812518133299. The next prime is 812518133419. The reversal of 812518133322 is 223331815218.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9672834879 + ... + 9672834962.

It is an arithmetic number, because the mean of its divisors is an integer number (116074019052).

Almost surely, 2^812518133322 is an apocalyptic number.

812518133322 is an abundant number, since it is smaller than the sum of its proper divisors (1044666171510).

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

812518133322 is a wasteful number, since it uses less digits than its factorization.

812518133322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19345669853.

The product of its digits is 69120, while the sum is 39.

The spelling of 812518133322 in words is "eight hundred twelve billion, five hundred eighteen million, one hundred thirty-three thousand, three hundred twenty-two".