1186137583987 has 2 divisors, whose sum is σ = 1186137583988. Its totient is φ = 1186137583986.

The previous prime is 1186137583903. The next prime is 1186137584059. The reversal of 1186137583987 is 7893857316811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1186137583987 - 2⁷ = 1186137583859 is a prime.

It is not a weakly prime, because it can be changed into another prime (1186137583087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593068791993 + 593068791994.

It is an arithmetic number, because the mean of its divisors is an integer number (593068791994).

Almost surely, 2^{1186137583987} is an apocalyptic number.

1186137583987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1186137583987 is an equidigital number, since it uses as much as digits as its factorization.

1186137583987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60963840, while the sum is 67.

The spelling of 1186137583987 in words is "one trillion, one hundred eighty-six billion, one hundred thirty-seven million, five hundred eighty-three thousand, nine hundred eighty-seven".