1186185480091 has 2 divisors, whose sum is σ = 1186185480092. Its totient is φ = 1186185480090.

The previous prime is 1186185480071. The next prime is 1186185480169. The reversal of 1186185480091 is 1900845816811.

It is a weak prime.

It is an emirp because it is prime and its reverse (1900845816811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1186185480091 - 2⁵ = 1186185480059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1186185480001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593092740045 + 593092740046.

It is an arithmetic number, because the mean of its divisors is an integer number (593092740046).

Almost surely, 2^{1186185480091} is an apocalyptic number.

1186185480091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1186185480091 is an equidigital number, since it uses as much as digits as its factorization.

1186185480091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 52.

The spelling of 1186185480091 in words is "one trillion, one hundred eighty-six billion, one hundred eighty-five million, four hundred eighty thousand, ninety-one".