12618045877 has 2 divisors, whose sum is σ = 12618045878. Its totient is φ = 12618045876.

The previous prime is 12618045851. The next prime is 12618045889. The reversal of 12618045877 is 77854081621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10576271281 + 2041774596 = 102841^2 + 45186^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12618045877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12618045877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12618043877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6309022938 + 6309022939.

It is an arithmetic number, because the mean of its divisors is an integer number (6309022939).

Almost surely, 2^12618045877 is an apocalyptic number.

It is an amenable number.

12618045877 is a deficient number, since it is larger than the sum of its proper divisors (1).

12618045877 is an equidigital number, since it uses as much as digits as its factorization.

12618045877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 752640, while the sum is 49.

The spelling of 12618045877 in words is "twelve billion, six hundred eighteen million, forty-five thousand, eight hundred seventy-seven".