812233609880 has 576 divisors, whose sum is σ = 2505165239520. Its totient is φ = 234255974400.

The previous prime is 812233609843. The next prime is 812233609927. The reversal of 812233609880 is 88906332218.

812233609880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×812233609880² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 380080172 + ... + 380082308.

Almost surely, 2^812233609880 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 812233609880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1252582619760).

812233609880 is an abundant number, since it is smaller than the sum of its proper divisors (1692931629640).

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

812233609880 is a wasteful number, since it uses less digits than its factorization.

812233609880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268 (or 2240 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 812233609880 in words is "eight hundred twelve billion, two hundred thirty-three million, six hundred nine thousand, eight hundred eighty".