12739740243 has 8 divisors (see below), whose sum is σ = 16993271808. Its totient is φ = 8489684424.

The previous prime is 12739740229. The next prime is 12739740257. The reversal of 12739740243 is 34204793721.

12739740243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12739740229) and next prime (12739740257).

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

It is not a de Polignac number, because 12739740243 - 2¹² = 12739736147 is a prime.

It is a super-2 number, since 2×12739740243² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12739740195 and 12739740204.

It is not an unprimeable number, because it can be changed into a prime (12739740203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860371 + ... + 875052.

It is an arithmetic number, because the mean of its divisors is an integer number (2124158976).

Almost surely, 2^12739740243 is an apocalyptic number.

12739740243 is a deficient number, since it is larger than the sum of its proper divisors (4253531565).

12739740243 is a wasteful number, since it uses less digits than its factorization.

12739740243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737873.

The product of its (nonzero) digits is 254016, while the sum is 42.

The spelling of 12739740243 in words is "twelve billion, seven hundred thirty-nine million, seven hundred forty thousand, two hundred forty-three".