812782132112 has 40 divisors (see below), whose sum is σ = 1583250451200. Its totient is φ = 404202240000.

The previous prime is 812782132061. The next prime is 812782132121. The reversal of 812782132112 is 211231287218.

It is a super-2 number, since 2×812782132112² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16647737 + ... + 16696487.

It is an arithmetic number, because the mean of its divisors is an integer number (39581261280).

Almost surely, 2^812782132112 is an apocalyptic number.

It is an amenable number.

812782132112 is a deficient number, since it is larger than the sum of its proper divisors (770468319088).

812782132112 is a wasteful number, since it uses less digits than its factorization.

812782132112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54351 (or 54345 counting only the distinct ones).

The product of its digits is 21504, while the sum is 38.

The spelling of 812782132112 in words is "eight hundred twelve billion, seven hundred eighty-two million, one hundred thirty-two thousand, one hundred twelve".