12117836677 has 2 divisors, whose sum is σ = 12117836678. Its totient is φ = 12117836676.

The previous prime is 12117836671. The next prime is 12117836683. The reversal of 12117836677 is 77663871121.

It is a balanced prime because it is at equal distance from previous prime (12117836671) and next prime (12117836683).

It can be written as a sum of positive squares in only one way, i.e., 7077688641 + 5040148036 = 84129^2 + 70994^2 .

It is a cyclic number.

It is not a de Polignac number, because 12117836677 - 2³ = 12117836669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12117836677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12117836671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6058918338 + 6058918339.

It is an arithmetic number, because the mean of its divisors is an integer number (6058918339).

Almost surely, 2^12117836677 is an apocalyptic number.

It is an amenable number.

12117836677 is a deficient number, since it is larger than the sum of its proper divisors (1).

12117836677 is an equidigital number, since it uses as much as digits as its factorization.

12117836677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 592704, while the sum is 49.

The spelling of 12117836677 in words is "twelve billion, one hundred seventeen million, eight hundred thirty-six thousand, six hundred seventy-seven".