12769954469 has 2 divisors, whose sum is σ = 12769954470. Its totient is φ = 12769954468.

The previous prime is 12769954367. The next prime is 12769954471. The reversal of 12769954469 is 96445996721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8082909025 + 4687045444 = 89905^2 + 68462^2 .

It is a cyclic number.

It is not a de Polignac number, because 12769954469 - 2²⁰ = 12768905893 is a prime.

It is a super-2 number, since 2×12769954469² (a number of 21 digits) contains 22 as substring.

Together with 12769954471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12769954969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6384977234 + 6384977235.

It is an arithmetic number, because the mean of its divisors is an integer number (6384977235).

Almost surely, 2^12769954469 is an apocalyptic number.

It is an amenable number.

12769954469 is a deficient number, since it is larger than the sum of its proper divisors (1).

12769954469 is an equidigital number, since it uses as much as digits as its factorization.

12769954469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29393280, while the sum is 62.

The spelling of 12769954469 in words is "twelve billion, seven hundred sixty-nine million, nine hundred fifty-four thousand, four hundred sixty-nine".