1587285871444 has 48 divisors (see below), whose sum is σ = 3440545295488. Its totient is φ = 623937644928.

The previous prime is 1587285871429. The next prime is 1587285871477. The reversal of 1587285871444 is 4441785827851.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13830354 + ... + 13944649.

Almost surely, 2^{1587285871444} is an apocalyptic number.

1587285871444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1587285871444 is an abundant number, since it is smaller than the sum of its proper divisors (1853259424044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1587285871444 is a wasteful number, since it uses less digits than its factorization.

1587285871444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27775184 (or 27775182 counting only the distinct ones).

The product of its digits is 80281600, while the sum is 64.

The spelling of 1587285871444 in words is "one trillion, five hundred eighty-seven billion, two hundred eighty-five million, eight hundred seventy-one thousand, four hundred forty-four".