12788765039 has 2 divisors, whose sum is σ = 12788765040. Its totient is φ = 12788765038.

The previous prime is 12788765027. The next prime is 12788765047. The reversal of 12788765039 is 93056788721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12788765039 - 2⁴ = 12788765023 is a prime.

It is a super-2 number, since 2×12788765039² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12788765089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6394382519 + 6394382520.

It is an arithmetic number, because the mean of its divisors is an integer number (6394382520).

Almost surely, 2^12788765039 is an apocalyptic number.

12788765039 is a deficient number, since it is larger than the sum of its proper divisors (1).

12788765039 is an equidigital number, since it uses as much as digits as its factorization.

12788765039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 12788765039 in words is "twelve billion, seven hundred eighty-eight million, seven hundred sixty-five thousand, thirty-nine".