806003193812 has 6 divisors (see below), whose sum is σ = 1410505589178. Its totient is φ = 403001596904.

The previous prime is 806003193797. The next prime is 806003193823. The reversal of 806003193812 is 218391300608.

It can be written as a sum of positive squares in only one way, i.e., 805692940816 + 310252996 = 897604^2 + 17614^2 .

It is a super-2 number, since 2×806003193812² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 806003193812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100750399223 + ... + 100750399230.

It is an arithmetic number, because the mean of its divisors is an integer number (235084264863).

Almost surely, 2^806003193812 is an apocalyptic number.

It is an amenable number.

806003193812 is a deficient number, since it is larger than the sum of its proper divisors (604502395366).

806003193812 is a wasteful number, since it uses less digits than its factorization.

806003193812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201500798457 (or 201500798455 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 806003193812 in words is "eight hundred six billion, three million, one hundred ninety-three thousand, eight hundred twelve".