812085265684 has 48 divisors (see below), whose sum is σ = 1832919742080. Its totient is φ = 305486616960.

The previous prime is 812085265657. The next prime is 812085265709. The reversal of 812085265684 is 486562580218.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 45450387 + ... + 45468250.

It is an arithmetic number, because the mean of its divisors is an integer number (38185827960).

Almost surely, 2^812085265684 is an apocalyptic number.

It is an amenable number.

812085265684 is an abundant number, since it is smaller than the sum of its proper divisors (1020834476396).

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

812085265684 is a wasteful number, since it uses less digits than its factorization.

812085265684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90918688 (or 90918686 counting only the distinct ones).

The product of its (nonzero) digits is 7372800, while the sum is 55.

The spelling of 812085265684 in words is "eight hundred twelve billion, eighty-five million, two hundred sixty-five thousand, six hundred eighty-four".