12156789743 has 8 divisors (see below), whose sum is σ = 14710737312. Its totient is φ = 9807158016.

The previous prime is 12156789739. The next prime is 12156789769. The reversal of 12156789743 is 34798765121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12156789743 - 2² = 12156789739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12156789773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51078830 + ... + 51079067.

It is an arithmetic number, because the mean of its divisors is an integer number (1838842164).

Almost surely, 2^12156789743 is an apocalyptic number.

12156789743 is a deficient number, since it is larger than the sum of its proper divisors (2553947569).

12156789743 is a wasteful number, since it uses less digits than its factorization.

12156789743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102157921.

The product of its digits is 2540160, while the sum is 53.

The spelling of 12156789743 in words is "twelve billion, one hundred fifty-six million, seven hundred eighty-nine thousand, seven hundred forty-three".