12783747672 has 64 divisors (see below), whose sum is σ = 35563269600. Its totient is φ = 4254906240.

The previous prime is 12783747671. The next prime is 12783747679. The reversal of 12783747672 is 27674738721.

12783747672 is a `hidden beast` number, since 1 + 2 + 78 + 37 + 476 + 72 = 666.

12783747672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12783747671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102522 + ... + 189942.

Almost surely, 2^12783747672 is an apocalyptic number.

12783747672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12783747672 is an abundant number, since it is smaller than the sum of its proper divisors (22779521928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12783747672 is a wasteful number, since it uses less digits than its factorization.

12783747672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88113 (or 88103 counting only the distinct ones).

The product of its digits is 5531904, while the sum is 54.

The spelling of 12783747672 in words is "twelve billion, seven hundred eighty-three million, seven hundred forty-seven thousand, six hundred seventy-two".