12776535459 has 16 divisors (see below), whose sum is σ = 18943626240. Its totient is φ = 8510748840.

The previous prime is 12776535391. The next prime is 12776535493. The reversal of 12776535459 is 95453567721.

It is a happy number.

12776535459 is a `hidden beast` number, since 1 + 27 + 76 + 5 + 3 + 545 + 9 = 666.

It is not a de Polignac number, because 12776535459 - 2²⁰ = 12775486883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12776535559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158967 + ... + 225440.

It is an arithmetic number, because the mean of its divisors is an integer number (1183976640).

Almost surely, 2^12776535459 is an apocalyptic number.

12776535459 is a deficient number, since it is larger than the sum of its proper divisors (6167090781).

12776535459 is a wasteful number, since it uses less digits than its factorization.

12776535459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385647 (or 385641 counting only the distinct ones).

The product of its digits is 7938000, while the sum is 54.

The spelling of 12776535459 in words is "twelve billion, seven hundred seventy-six million, five hundred thirty-five thousand, four hundred fifty-nine".