12783706923 has 16 divisors (see below), whose sum is σ = 18358583040. Its totient is φ = 7865829024.

The previous prime is 12783706909. The next prime is 12783706931. The reversal of 12783706923 is 32960738721.

It is not a de Polignac number, because 12783706923 - 2⁸ = 12783706667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12783706993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346018 + ... + 381176.

It is an arithmetic number, because the mean of its divisors is an integer number (1147411440).

Almost surely, 2^12783706923 is an apocalyptic number.

12783706923 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12783706923 is a deficient number, since it is larger than the sum of its proper divisors (5574876117).

12783706923 is a wasteful number, since it uses less digits than its factorization.

12783706923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44498.

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 12783706923 in words is "twelve billion, seven hundred eighty-three million, seven hundred six thousand, nine hundred twenty-three".