1087585128745 has 4 divisors (see below), whose sum is σ = 1305102154500. Its totient is φ = 870068102992.

The previous prime is 1087585128701. The next prime is 1087585128757. The reversal of 1087585128745 is 5478215857801.

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

It can be written as a sum of positive squares in 2 ways, for example, as 624340183104 + 463244945641 = 790152^2 + 680621^2 .

It is a cyclic number.

It is not a de Polignac number, because 1087585128745 - 2²⁷ = 1087450911017 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108758512870 + ... + 108758512879.

It is an arithmetic number, because the mean of its divisors is an integer number (326275538625).

Almost surely, 2^{1087585128745} is an apocalyptic number.

It is an amenable number.

1087585128745 is a deficient number, since it is larger than the sum of its proper divisors (217517025755).

1087585128745 is an equidigital number, since it uses as much as digits as its factorization.

1087585128745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217517025754.

The product of its (nonzero) digits is 25088000, while the sum is 61.

The spelling of 1087585128745 in words is "one trillion, eighty-seven billion, five hundred eighty-five million, one hundred twenty-eight thousand, seven hundred forty-five".