812712752052 has 48 divisors (see below), whose sum is σ = 1909243392000. Its totient is φ = 269061676128.

The previous prime is 812712752029. The next prime is 812712752063. The reversal of 812712752052 is 250257217218.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 812712751995 and 812712752013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2793453 + ... + 3070635.

It is an arithmetic number, because the mean of its divisors is an integer number (39775904000).

Almost surely, 2^812712752052 is an apocalyptic number.

It is an amenable number.

812712752052 is an abundant number, since it is smaller than the sum of its proper divisors (1096530639948).

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

812712752052 is a wasteful number, since it uses less digits than its factorization.

812712752052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278852 (or 278850 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The spelling of 812712752052 in words is "eight hundred twelve billion, seven hundred twelve million, seven hundred fifty-two thousand, fifty-two".