11986455487 has 2 divisors, whose sum is σ = 11986455488. Its totient is φ = 11986455486.

The previous prime is 11986455419. The next prime is 11986455499. The reversal of 11986455487 is 78455468911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11986455487 - 2²³ = 11978066879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11986455407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5993227743 + 5993227744.

It is an arithmetic number, because the mean of its divisors is an integer number (5993227744).

Almost surely, 2^11986455487 is an apocalyptic number.

11986455487 is a deficient number, since it is larger than the sum of its proper divisors (1).

11986455487 is an equidigital number, since it uses as much as digits as its factorization.

11986455487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9676800, while the sum is 58.

The spelling of 11986455487 in words is "eleven billion, nine hundred eighty-six million, four hundred fifty-five thousand, four hundred eighty-seven".