228646852523812 has 12 divisors (see below), whose sum is σ = 402817441527900. Its totient is φ = 113556154944416.

The previous prime is 228646852523723. The next prime is 228646852523911. The reversal of 228646852523812 is 218325258646822.

It can be written as a sum of positive squares in 2 ways, for example, as 134918585778916 + 93728266744896 = 11615446^2 + 9681336^2 .

It is a super-2 number, since 2×228646852523812² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191817828703 + ... + 191817829894.

It is an arithmetic number, because the mean of its divisors is an integer number (33568120127325).

Almost surely, 2^{228646852523812} is an apocalyptic number.

It is an amenable number.

228646852523812 is a deficient number, since it is larger than the sum of its proper divisors (174170589004088).

228646852523812 is a wasteful number, since it uses less digits than its factorization.

228646852523812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383635658750 (or 383635658748 counting only the distinct ones).

The product of its digits is 176947200, while the sum is 64.

The spelling of 228646852523812 in words is "two hundred twenty-eight trillion, six hundred forty-six billion, eight hundred fifty-two million, five hundred twenty-three thousand, eight hundred twelve".