12036647839 has 16 divisors (see below), whose sum is σ = 12916713600. Its totient is φ = 11181489696.

The previous prime is 12036647837. The next prime is 12036647881. The reversal of 12036647839 is 93874663021.

It is a cyclic number.

It is not a de Polignac number, because 12036647839 - 2¹ = 12036647837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12036647792 and 12036647801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12036647837) 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, 3183252 + ... + 3187030.

It is an arithmetic number, because the mean of its divisors is an integer number (807294600).

Almost surely, 2^12036647839 is an apocalyptic number.

12036647839 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12036647839 is a deficient number, since it is larger than the sum of its proper divisors (880065761).

12036647839 is a wasteful number, since it uses less digits than its factorization.

12036647839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7014.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 12036647839 in words is "twelve billion, thirty-six million, six hundred forty-seven thousand, eight hundred thirty-nine".