12257284238 has 8 divisors (see below), whose sum is σ = 18398584488. Its totient is φ = 6124422744.

The previous prime is 12257284213. The next prime is 12257284253. The reversal of 12257284238 is 83248275221.

12257284238 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 super-2 number, since 2×12257284238² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 2106056 + ... + 2111867.

It is an arithmetic number, because the mean of its divisors is an integer number (2299823061).

Almost surely, 2^12257284238 is an apocalyptic number.

12257284238 is a deficient number, since it is larger than the sum of its proper divisors (6141300250).

12257284238 is a wasteful number, since it uses less digits than its factorization.

12257284238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4219378.

The product of its digits is 430080, while the sum is 44.

The spelling of 12257284238 in words is "twelve billion, two hundred fifty-seven million, two hundred eighty-four thousand, two hundred thirty-eight".