12788111252 has 24 divisors (see below), whose sum is σ = 25595687040. Its totient is φ = 5476448160.

The previous prime is 12788111249. The next prime is 12788111257. The reversal of 12788111252 is 25211188721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12788111257) 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 7 ways as a sum of consecutive naturals, for example, 136199 + ... + 210062.

It is an arithmetic number, because the mean of its divisors is an integer number (1066486960).

Almost surely, 2^12788111252 is an apocalyptic number.

It is an amenable number.

12788111252 is an abundant number, since it is smaller than the sum of its proper divisors (12807575788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12788111252 is a wasteful number, since it uses less digits than its factorization.

12788111252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347591 (or 347589 counting only the distinct ones).

The product of its digits is 17920, while the sum is 38.

Adding to 12788111252 its reverse (25211188721), we get a palindrome (37999299973).

The spelling of 12788111252 in words is "twelve billion, seven hundred eighty-eight million, one hundred eleven thousand, two hundred fifty-two".