12677435249 has 4 divisors (see below), whose sum is σ = 12743121636. Its totient is φ = 12611748864.

The previous prime is 12677435233. The next prime is 12677435257. The reversal of 12677435249 is 94253477621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3308550400 + 9368884849 = 57520^2 + 96793^2 .

It is a cyclic number.

It is not a de Polignac number, because 12677435249 - 2⁴ = 12677435233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12677435197 and 12677435206.

It is not an unprimeable number, because it can be changed into a prime (12677435219) 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 3 ways as a sum of consecutive naturals, for example, 32842904 + ... + 32843289.

It is an arithmetic number, because the mean of its divisors is an integer number (3185780409).

Almost surely, 2^12677435249 is an apocalyptic number.

It is an amenable number.

12677435249 is a deficient number, since it is larger than the sum of its proper divisors (65686387).

12677435249 is an equidigital number, since it uses as much as digits as its factorization.

12677435249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65686386.

The product of its digits is 2540160, while the sum is 50.

The spelling of 12677435249 in words is "twelve billion, six hundred seventy-seven million, four hundred thirty-five thousand, two hundred forty-nine".