12676203649 has 2 divisors, whose sum is σ = 12676203650. Its totient is φ = 12676203648.

The previous prime is 12676203613. The next prime is 12676203671. The reversal of 12676203649 is 94630267621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8078414400 + 4597789249 = 89880^2 + 67807^2 .

It is an emirp because it is prime and its reverse (94630267621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12676203649 is a prime.

It is a super-2 number, since 2×12676203649² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12676203599 and 12676203608.

It is not a weakly prime, because it can be changed into another prime (12676203679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6338101824 + 6338101825.

It is an arithmetic number, because the mean of its divisors is an integer number (6338101825).

Almost surely, 2^12676203649 is an apocalyptic number.

It is an amenable number.

12676203649 is a deficient number, since it is larger than the sum of its proper divisors (1).

12676203649 is an equidigital number, since it uses as much as digits as its factorization.

12676203649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 12676203649 in words is "twelve billion, six hundred seventy-six million, two hundred three thousand, six hundred forty-nine".