12783147839 has 16 divisors (see below), whose sum is σ = 15945619200. Its totient is φ = 9955776960.

The previous prime is 12783147827. The next prime is 12783147847. The reversal of 12783147839 is 93874138721.

It is a cyclic number.

It is not a de Polignac number, because 12783147839 - 2⁴ = 12783147823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12783147809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111812 + ... + 195110.

It is an arithmetic number, because the mean of its divisors is an integer number (996601200).

Almost surely, 2^12783147839 is an apocalyptic number.

12783147839 is a deficient number, since it is larger than the sum of its proper divisors (3162471361).

12783147839 is a wasteful number, since it uses less digits than its factorization.

12783147839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85310.

The product of its digits is 2032128, while the sum is 53.

The spelling of 12783147839 in words is "twelve billion, seven hundred eighty-three million, one hundred forty-seven thousand, eight hundred thirty-nine".