12788700687 has 32 divisors (see below), whose sum is σ = 22926528000. Its totient is φ = 6877954944.

The previous prime is 12788700641. The next prime is 12788700697. The reversal of 12788700687 is 78600788721.

It is not a de Polignac number, because 12788700687 - 2¹⁰ = 12788699663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12788700637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1986937 + ... + 1993362.

It is an arithmetic number, because the mean of its divisors is an integer number (716454000).

Almost surely, 2^12788700687 is an apocalyptic number.

12788700687 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12788700687 is a deficient number, since it is larger than the sum of its proper divisors (10137827313).

12788700687 is a wasteful number, since it uses less digits than its factorization.

12788700687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980332 (or 3980326 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 54.

The spelling of 12788700687 in words is "twelve billion, seven hundred eighty-eight million, seven hundred thousand, six hundred eighty-seven".