12431333738 has 8 divisors (see below), whose sum is σ = 18647829732. Its totient is φ = 6215390496.

The previous prime is 12431333729. The next prime is 12431333819. The reversal of 12431333738 is 83733313421.

It can be written as a sum of positive squares in 2 ways, for example, as 8324190169 + 4107143569 = 91237^2 + 64087^2 .

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

It is an unprimeable number.

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, 76445 + ... + 175232.

Almost surely, 2^12431333738 is an apocalyptic number.

12431333738 is a deficient number, since it is larger than the sum of its proper divisors (6216495994).

12431333738 is a wasteful number, since it uses less digits than its factorization.

12431333738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276376.

The product of its digits is 108864, while the sum is 38.

The spelling of 12431333738 in words is "twelve billion, four hundred thirty-one million, three hundred thirty-three thousand, seven hundred thirty-eight".