12819346312 has 16 divisors (see below), whose sum is σ = 24055537500. Its totient is φ = 6404536320.

The previous prime is 12819346289. The next prime is 12819346313. The reversal of 12819346312 is 21364391821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12326772676 + 492573636 = 111026^2 + 22194^2 .

It is not an unprimeable number, because it can be changed into a prime (12819346313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631489 + ... + 651472.

Almost surely, 2^12819346312 is an apocalyptic number.

It is an amenable number.

12819346312 is a deficient number, since it is larger than the sum of its proper divisors (11236191188).

12819346312 is a wasteful number, since it uses less digits than its factorization.

12819346312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284216 (or 1284212 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The spelling of 12819346312 in words is "twelve billion, eight hundred nineteen million, three hundred forty-six thousand, three hundred twelve".