12947438383 has 12 divisors (see below), whose sum is σ = 14443901080. Its totient is φ = 11594713680.

The previous prime is 12947438381. The next prime is 12947438437. The reversal of 12947438383 is 38383474921.

It is not a de Polignac number, because 12947438383 - 2¹ = 12947438381 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12947438383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12947438381) 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 11 ways as a sum of consecutive naturals, for example, 790428 + ... + 806641.

Almost surely, 2^12947438383 is an apocalyptic number.

12947438383 is a deficient number, since it is larger than the sum of its proper divisors (1496462697).

12947438383 is a wasteful number, since it uses less digits than its factorization.

12947438383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597158 (or 1597147 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 52.

The spelling of 12947438383 in words is "twelve billion, nine hundred forty-seven million, four hundred thirty-eight thousand, three hundred eighty-three".