12740747443 has 16 divisors (see below), whose sum is σ = 13735766016. Its totient is φ = 11783185920.

The previous prime is 12740747441. The next prime is 12740747449. The reversal of 12740747443 is 34474704721.

It is a cyclic number.

It is not a de Polignac number, because 12740747443 - 2¹ = 12740747441 is a prime.

It is a super-2 number, since 2×12740747443² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12740747443.

It is not an unprimeable number, because it can be changed into a prime (12740747441) 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, 860380 + ... + 875062.

It is an arithmetic number, because the mean of its divisors is an integer number (858485376).

Almost surely, 2^12740747443 is an apocalyptic number.

12740747443 is a deficient number, since it is larger than the sum of its proper divisors (995018573).

12740747443 is a wasteful number, since it uses less digits than its factorization.

12740747443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15954.

The product of its (nonzero) digits is 526848, while the sum is 43.

The spelling of 12740747443 in words is "twelve billion, seven hundred forty million, seven hundred forty-seven thousand, four hundred forty-three".