12177760769 has 2 divisors, whose sum is σ = 12177760770. Its totient is φ = 12177760768.

The previous prime is 12177760723. The next prime is 12177760867. The reversal of 12177760769 is 96706777121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6441667600 + 5736093169 = 80260^2 + 75737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12177760769 is a prime.

It is a super-2 number, since 2×12177760769² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12177760769.

It is not a weakly prime, because it can be changed into another prime (12177760709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6088880384 + 6088880385.

It is an arithmetic number, because the mean of its divisors is an integer number (6088880385).

Almost surely, 2^12177760769 is an apocalyptic number.

It is an amenable number.

12177760769 is a deficient number, since it is larger than the sum of its proper divisors (1).

12177760769 is an equidigital number, since it uses as much as digits as its factorization.

12177760769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555848, while the sum is 53.

The spelling of 12177760769 in words is "twelve billion, one hundred seventy-seven million, seven hundred sixty thousand, seven hundred sixty-nine".