812350385012 has 6 divisors (see below), whose sum is σ = 1421613173778. Its totient is φ = 406175192504.

The previous prime is 812350385009. The next prime is 812350385059. The reversal of 812350385012 is 210583053218.

It can be written as a sum of positive squares in only one way, i.e., 812114578276 + 235806736 = 901174^2 + 15356^2 .

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 as a sum of consecutive naturals, namely, 101543798123 + ... + 101543798130.

It is an arithmetic number, because the mean of its divisors is an integer number (236935528963).

Almost surely, 2^812350385012 is an apocalyptic number.

It is an amenable number.

812350385012 is a deficient number, since it is larger than the sum of its proper divisors (609262788766).

812350385012 is a wasteful number, since it uses less digits than its factorization.

812350385012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203087596257 (or 203087596255 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 812350385012 in words is "eight hundred twelve billion, three hundred fifty million, three hundred eighty-five thousand, twelve".