12806783742 has 32 divisors (see below), whose sum is σ = 26020536192. Its totient is φ = 4201221024.

The previous prime is 12806783741. The next prime is 12806783749. The reversal of 12806783742 is 24738760821.

It is a junction number, because it is equal to n+sod(n) for n = 12806783691 and 12806783700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12806783741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424813 + ... + 453959.

It is an arithmetic number, because the mean of its divisors is an integer number (813141756).

Almost surely, 2^12806783742 is an apocalyptic number.

12806783742 is an abundant number, since it is smaller than the sum of its proper divisors (13213752450).

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

12806783742 is a wasteful number, since it uses less digits than its factorization.

12806783742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30312.

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 12806783742 in words is "twelve billion, eight hundred six million, seven hundred eighty-three thousand, seven hundred forty-two".