186960345889 has 2 divisors, whose sum is σ = 186960345890. Its totient is φ = 186960345888.

The previous prime is 186960345791. The next prime is 186960345911. The reversal of 186960345889 is 988543069681.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114994235664 + 71966110225 = 339108^2 + 268265^2 .

It is a cyclic number.

It is not a de Polignac number, because 186960345889 - 2¹¹ = 186960343841 is a prime.

It is not a weakly prime, because it can be changed into another prime (186960345389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93480172944 + 93480172945.

It is an arithmetic number, because the mean of its divisors is an integer number (93480172945).

Almost surely, 2^186960345889 is an apocalyptic number.

It is an amenable number.

186960345889 is a deficient number, since it is larger than the sum of its proper divisors (1).

186960345889 is an equidigital number, since it uses as much as digits as its factorization.

186960345889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89579520, while the sum is 67.

The spelling of 186960345889 in words is "one hundred eighty-six billion, nine hundred sixty million, three hundred forty-five thousand, eight hundred eighty-nine".