186668765341 has 4 divisors (see below), whose sum is σ = 186669742300. Its totient is φ = 186667788384.

The previous prime is 186668765303. The next prime is 186668765351. The reversal of 186668765341 is 143567866681.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 143567866681 = 37 ⋅3880212613.

It can be written as a sum of positive squares in 2 ways, for example, as 89418342841 + 97250422500 = 299029^2 + 311850^2 .

It is a cyclic number.

It is not a de Polignac number, because 186668765341 - 2¹¹ = 186668763293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 186668765341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (186668765351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97626 + ... + 618763.

It is an arithmetic number, because the mean of its divisors is an integer number (46667435575).

Almost surely, 2^186668765341 is an apocalyptic number.

It is an amenable number.

186668765341 is a deficient number, since it is larger than the sum of its proper divisors (976959).

186668765341 is an equidigital number, since it uses as much as digits as its factorization.

186668765341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976958.

The product of its digits is 34836480, while the sum is 61.

The spelling of 186668765341 in words is "one hundred eighty-six billion, six hundred sixty-eight million, seven hundred sixty-five thousand, three hundred forty-one".