812646283392 has 256 divisors, whose sum is σ = 2528540179200. Its totient is φ = 256430997504.

The previous prime is 812646283381. The next prime is 812646283417. The reversal of 812646283392 is 293382646218.

812646283392 is a `hidden beast` number, since 8 + 1 + 2 + 6 + 4 + 628 + 3 + 3 + 9 + 2 = 666.

812646283392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7657638 + ... + 7763034.

It is an arithmetic number, because the mean of its divisors is an integer number (9877110075).

Almost surely, 2^812646283392 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 812646283392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1264270089600).

812646283392 is an abundant number, since it is smaller than the sum of its proper divisors (1715893895808).

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

812646283392 is a wasteful number, since it uses less digits than its factorization.

812646283392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105540 (or 105522 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The spelling of 812646283392 in words is "eight hundred twelve billion, six hundred forty-six million, two hundred eighty-three thousand, three hundred ninety-two".