12799696728 has 64 divisors (see below), whose sum is σ = 39383688960. Its totient is φ = 3375743616.

The previous prime is 12799696727. The next prime is 12799696739. The reversal of 12799696728 is 82769699721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12799696727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2928150 + ... + 2932517.

It is an arithmetic number, because the mean of its divisors is an integer number (615370140).

Almost surely, 2^12799696728 is an apocalyptic number.

It is an amenable number.

12799696728 is an abundant number, since it is smaller than the sum of its proper divisors (26583992232).

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

12799696728 is a wasteful number, since it uses less digits than its factorization.

12799696728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5860696 (or 5860692 counting only the distinct ones).

The product of its digits is 41150592, while the sum is 66.

The spelling of 12799696728 in words is "twelve billion, seven hundred ninety-nine million, six hundred ninety-six thousand, seven hundred twenty-eight".