1587132827447 has 4 divisors (see below), whose sum is σ = 1625843384256. Its totient is φ = 1548422270640.

The previous prime is 1587132827419. The next prime is 1587132827521. The reversal of 1587132827447 is 7447282317851.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1587132827447 - 2²⁶ = 1587065718583 is a prime.

It is a super-2 number, since 2×1587132827447² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1587132827407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19355278343 + ... + 19355278424.

It is an arithmetic number, because the mean of its divisors is an integer number (406460846064).

Almost surely, 2^{1587132827447} is an apocalyptic number.

1587132827447 is a deficient number, since it is larger than the sum of its proper divisors (38710556809).

1587132827447 is an equidigital number, since it uses as much as digits as its factorization.

1587132827447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38710556808.

The product of its digits is 21073920, while the sum is 59.

The spelling of 1587132827447 in words is "one trillion, five hundred eighty-seven billion, one hundred thirty-two million, eight hundred twenty-seven thousand, four hundred forty-seven".