12885768735 has 32 divisors (see below), whose sum is σ = 23567431680. Its totient is φ = 5889416448.

The previous prime is 12885768733. The next prime is 12885768739. The reversal of 12885768735 is 53786758821.

It is not a de Polignac number, because 12885768735 - 2¹ = 12885768733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12885768733) 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, 670186 + ... + 689144.

It is an arithmetic number, because the mean of its divisors is an integer number (736482240).

Almost surely, 2^12885768735 is an apocalyptic number.

12885768735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12885768735 is a deficient number, since it is larger than the sum of its proper divisors (10681662945).

12885768735 is a wasteful number, since it uses less digits than its factorization.

12885768735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25447.

The product of its digits is 22579200, while the sum is 60.

The spelling of 12885768735 in words is "twelve billion, eight hundred eighty-five million, seven hundred sixty-eight thousand, seven hundred thirty-five".