12438550783 has 4 divisors (see below), whose sum is σ = 12449994880. Its totient is φ = 12427106688.

The previous prime is 12438550759. The next prime is 12438550793. The reversal of 12438550783 is 38705583421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12438550783 - 2¹³ = 12438542591 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 (12438550793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5720418 + ... + 5722591.

It is an arithmetic number, because the mean of its divisors is an integer number (3112498720).

Almost surely, 2^12438550783 is an apocalyptic number.

12438550783 is a deficient number, since it is larger than the sum of its proper divisors (11444097).

12438550783 is a wasteful number, since it uses less digits than its factorization.

12438550783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11444096.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 12438550783 in words is "twelve billion, four hundred thirty-eight million, five hundred fifty thousand, seven hundred eighty-three".