16812534351228 has 384 divisors, whose sum is σ = 52349893263360. Its totient is φ = 4067739648000.

The previous prime is 16812534351191. The next prime is 16812534351271. The reversal of 16812534351228 is 82215343521861.

It is a happy number.

It is a super-2 number, since 2×16812534351228² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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 127 ways as a sum of consecutive naturals, for example, 464917468 + ... + 464953628.

It is an arithmetic number, because the mean of its divisors is an integer number (136327847040).

Almost surely, 2^{16812534351228} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16812534351228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26174946631680).

16812534351228 is an abundant number, since it is smaller than the sum of its proper divisors (35537358912132).

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

16812534351228 is a wasteful number, since it uses less digits than its factorization.

16812534351228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36649 (or 36647 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 51.

The spelling of 16812534351228 in words is "sixteen trillion, eight hundred twelve billion, five hundred thirty-four million, three hundred fifty-one thousand, two hundred twenty-eight".