12788915250 has 32 divisors (see below), whose sum is σ = 31921134336. Its totient is φ = 3410377200.

The previous prime is 12788915221. The next prime is 12788915267. The reversal of 12788915250 is 5251988721.

It is a self number, because there is not a number n which added to its sum of digits gives 12788915250.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8525194 + ... + 8526693.

It is an arithmetic number, because the mean of its divisors is an integer number (997535448).

Almost surely, 2^12788915250 is an apocalyptic number.

12788915250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12788915250 is an abundant number, since it is smaller than the sum of its proper divisors (19132219086).

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

12788915250 is a wasteful number, since it uses less digits than its factorization.

12788915250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17051907 (or 17051897 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 48.

The spelling of 12788915250 in words is "twelve billion, seven hundred eighty-eight million, nine hundred fifteen thousand, two hundred fifty".