186618442752013 has 2 divisors, whose sum is σ = 186618442752014. Its totient is φ = 186618442752012.

The previous prime is 186618442751981. The next prime is 186618442752083. The reversal of 186618442752013 is 310257244816681.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161008233965604 + 25610208786409 = 12688902^2 + 5060653^2 .

It is a cyclic number.

It is not a de Polignac number, because 186618442752013 - 2⁵ = 186618442751981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (186618442752083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93309221376006 + 93309221376007.

It is an arithmetic number, because the mean of its divisors is an integer number (93309221376007).

Almost surely, 2^{186618442752013} is an apocalyptic number.

It is an amenable number.

186618442752013 is a deficient number, since it is larger than the sum of its proper divisors (1).

186618442752013 is an equidigital number, since it uses as much as digits as its factorization.

186618442752013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15482880, while the sum is 58.

The spelling of 186618442752013 in words is "one hundred eighty-six trillion, six hundred eighteen billion, four hundred forty-two million, seven hundred fifty-two thousand, thirteen".