812134147056 has 40 divisors (see below), whose sum is σ = 2100394722384. Its totient is φ = 270404090880.

The previous prime is 812134147051. The next prime is 812134147057. The reversal of 812134147056 is 650741431218.

It is a junction number, because it is equal to n+sod(n) for n = 812134146999 and 812134147017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812134147051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9560131 + ... + 9644706.

Almost surely, 2^812134147056 is an apocalyptic number.

It is an amenable number.

812134147056 is an abundant number, since it is smaller than the sum of its proper divisors (1288260575328).

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

812134147056 is a wasteful number, since it uses less digits than its factorization.

812134147056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19205729 (or 19205723 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 812134147056 in words is "eight hundred twelve billion, one hundred thirty-four million, one hundred forty-seven thousand, fifty-six".