12738458794 has 8 divisors (see below), whose sum is σ = 19108534500. Its totient is φ = 6368947296.

The previous prime is 12738458791. The next prime is 12738458807. The reversal of 12738458794 is 49785483721.

It can be written as a sum of positive squares in 2 ways, for example, as 12733994025 + 4464769 = 112845^2 + 2113^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12738458791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79179 + ... + 178174.

Almost surely, 2^12738458794 is an apocalyptic number.

12738458794 is a deficient number, since it is larger than the sum of its proper divisors (6370075706).

12738458794 is a wasteful number, since it uses less digits than its factorization.

12738458794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282104.

The product of its digits is 13547520, while the sum is 58.

The spelling of 12738458794 in words is "twelve billion, seven hundred thirty-eight million, four hundred fifty-eight thousand, seven hundred ninety-four".