186942700213 has 2 divisors, whose sum is σ = 186942700214. Its totient is φ = 186942700212.

The previous prime is 186942700183. The next prime is 186942700283. The reversal of 186942700213 is 312007249681.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175609607364 + 11333092849 = 419058^2 + 106457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-186942700213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 186942700213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (186942700283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93471350106 + 93471350107.

It is an arithmetic number, because the mean of its divisors is an integer number (93471350107).

Almost surely, 2^186942700213 is an apocalyptic number.

It is an amenable number.

186942700213 is a deficient number, since it is larger than the sum of its proper divisors (1).

186942700213 is an equidigital number, since it uses as much as digits as its factorization.

186942700213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

Adding to 186942700213 its reverse (312007249681), we get a palindrome (498949949894).

The spelling of 186942700213 in words is "one hundred eighty-six billion, nine hundred forty-two million, seven hundred thousand, two hundred thirteen".