812063646724 has 24 divisors (see below), whose sum is σ = 1550466955296. Its totient is φ = 369080880000.

The previous prime is 812063646707. The next prime is 812063646749. The reversal of 812063646724 is 427646360218.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550302 + ... + 1388149.

It is an arithmetic number, because the mean of its divisors is an integer number (64602789804).

Almost surely, 2^812063646724 is an apocalyptic number.

It is an amenable number.

812063646724 is a deficient number, since it is larger than the sum of its proper divisors (738403308572).

812063646724 is a wasteful number, since it uses less digits than its factorization.

812063646724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947987 (or 1947985 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 49.

The spelling of 812063646724 in words is "eight hundred twelve billion, sixty-three million, six hundred forty-six thousand, seven hundred twenty-four".