12788765045 has 24 divisors (see below), whose sum is σ = 17863601184. Its totient is φ = 8763775776.

The previous prime is 12788765039. The next prime is 12788765047. The reversal of 12788765045 is 54056788721.

12788765045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12788765045 - 2¹² = 12788760949 is a prime.

It is a super-2 number, since 2×12788765045² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12788765047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 382574 + ... + 414656.

It is an arithmetic number, because the mean of its divisors is an integer number (744316716).

Almost surely, 2^12788765045 is an apocalyptic number.

It is an amenable number.

12788765045 is a deficient number, since it is larger than the sum of its proper divisors (5074836139).

12788765045 is a wasteful number, since it uses less digits than its factorization.

12788765045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33729 (or 33722 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 53.

The spelling of 12788765045 in words is "twelve billion, seven hundred eighty-eight million, seven hundred sixty-five thousand, forty-five".