12783371764 has 12 divisors (see below), whose sum is σ = 22484459844. Its totient is φ = 6359240384.

The previous prime is 12783371753. The next prime is 12783371801. The reversal of 12783371764 is 46717338721.

It can be written as a sum of positive squares in 2 ways, for example, as 11248299364 + 1535072400 = 106058^2 + 39180^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8110489 + ... + 8112064.

It is an arithmetic number, because the mean of its divisors is an integer number (1873704987).

Almost surely, 2^12783371764 is an apocalyptic number.

It is an amenable number.

12783371764 is a deficient number, since it is larger than the sum of its proper divisors (9701088080).

12783371764 is a wasteful number, since it uses less digits than its factorization.

12783371764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16222754 (or 16222752 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 49.

The spelling of 12783371764 in words is "twelve billion, seven hundred eighty-three million, three hundred seventy-one thousand, seven hundred sixty-four".