12878902503 has 16 divisors (see below), whose sum is σ = 19348588800. Its totient is φ = 8465005080.

The previous prime is 12878902481. The next prime is 12878902507. The reversal of 12878902503 is 30520987821.

It is a happy number.

It is not a de Polignac number, because 12878902503 - 2²⁶ = 12811793639 is a prime.

It is a super-2 number, since 2×12878902503² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12878902507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3357213 + ... + 3361046.

It is an arithmetic number, because the mean of its divisors is an integer number (1209286800).

Almost surely, 2^12878902503 is an apocalyptic number.

12878902503 is a deficient number, since it is larger than the sum of its proper divisors (6469686297).

12878902503 is an equidigital number, since it uses as much as digits as its factorization.

12878902503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6718339 (or 6718333 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 12878902503 in words is "twelve billion, eight hundred seventy-eight million, nine hundred two thousand, five hundred three".