12503939475 has 12 divisors (see below), whose sum is σ = 20673180056. Its totient is φ = 6668767680.

The previous prime is 12503939473. The next prime is 12503939479. The reversal of 12503939475 is 57493930521.

It is not a de Polignac number, because 12503939475 - 2¹ = 12503939473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12503939473) 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, 83359522 + ... + 83359671.

Almost surely, 2^12503939475 is an apocalyptic number.

12503939475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12503939475 is a deficient number, since it is larger than the sum of its proper divisors (8169240581).

12503939475 is a wasteful number, since it uses less digits than its factorization.

12503939475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166719206 (or 166719201 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 48.

The spelling of 12503939475 in words is "twelve billion, five hundred three million, nine hundred thirty-nine thousand, four hundred seventy-five".