12503626943 has 4 divisors (see below), whose sum is σ = 12521464488. Its totient is φ = 12485789400.

The previous prime is 12503626937. The next prime is 12503626957. The reversal of 12503626943 is 34962630521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12503626943 - 2⁶ = 12503626879 is a prime.

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 12503626943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503626963) 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, 8917721 + ... + 8919122.

It is an arithmetic number, because the mean of its divisors is an integer number (3130366122).

Almost surely, 2^12503626943 is an apocalyptic number.

12503626943 is a deficient number, since it is larger than the sum of its proper divisors (17837545).

12503626943 is an equidigital number, since it uses as much as digits as its factorization.

12503626943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17837544.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 12503626943 in words is "twelve billion, five hundred three million, six hundred twenty-six thousand, nine hundred forty-three".