11871158387487 has 8 divisors (see below), whose sum is σ = 18089384209536. Its totient is φ = 6783519078552.

The previous prime is 11871158387477. The next prime is 11871158387521. The reversal of 11871158387487 is 78478385117811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11871158387487 - 2¹⁵ = 11871158354719 is a prime.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11871158387447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282646628253 + ... + 282646628294.

It is an arithmetic number, because the mean of its divisors is an integer number (2261173026192).

Almost surely, 2^{11871158387487} is an apocalyptic number.

11871158387487 is a deficient number, since it is larger than the sum of its proper divisors (6218225822049).

11871158387487 is an equidigital number, since it uses as much as digits as its factorization.

11871158387487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565293256557.

The product of its digits is 84295680, while the sum is 69.

The spelling of 11871158387487 in words is "eleven trillion, eight hundred seventy-one billion, one hundred fifty-eight million, three hundred eighty-seven thousand, four hundred eighty-seven".