186645077386193 has 2 divisors, whose sum is σ = 186645077386194. Its totient is φ = 186645077386192.

The previous prime is 186645077386181. The next prime is 186645077386321. The reversal of 186645077386193 is 391683770546681.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181335633752464 + 5309443633729 = 13466092^2 + 2304223^2 .

It is a cyclic number.

It is not a de Polignac number, because 186645077386193 - 2¹⁶ = 186645077320657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 186645077386193.

It is not a weakly prime, because it can be changed into another prime (186645077386123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93322538693096 + 93322538693097.

It is an arithmetic number, because the mean of its divisors is an integer number (93322538693097).

Almost surely, 2^{186645077386193} is an apocalyptic number.

It is an amenable number.

186645077386193 is a deficient number, since it is larger than the sum of its proper divisors (1).

186645077386193 is an equidigital number, since it uses as much as digits as its factorization.

186645077386193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1097349120, while the sum is 74.

The spelling of 186645077386193 in words is "one hundred eighty-six trillion, six hundred forty-five billion, seventy-seven million, three hundred eighty-six thousand, one hundred ninety-three".