12485278238 has 8 divisors (see below), whose sum is σ = 18737292000. Its totient is φ = 6239514240.

The previous prime is 12485278231. The next prime is 12485278277. The reversal of 12485278238 is 83287258421.

12485278238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12485278231) 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 3 ways as a sum of consecutive naturals, for example, 1557443 + ... + 1565438.

It is an arithmetic number, because the mean of its divisors is an integer number (2342161500).

Almost surely, 2^12485278238 is an apocalyptic number.

12485278238 is a deficient number, since it is larger than the sum of its proper divisors (6252013762).

12485278238 is a wasteful number, since it uses less digits than its factorization.

12485278238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3124882.

The product of its digits is 1720320, while the sum is 50.

The spelling of 12485278238 in words is "twelve billion, four hundred eighty-five million, two hundred seventy-eight thousand, two hundred thirty-eight".