13887582585 has 16 divisors (see below), whose sum is σ = 22936911360. Its totient is φ = 7167784320.

The previous prime is 13887582539. The next prime is 13887582601. The reversal of 13887582585 is 58528578831.

It is not a de Polignac number, because 13887582585 - 2⁶ = 13887582521 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14932420 + ... + 14933349.

It is an arithmetic number, because the mean of its divisors is an integer number (1433556960).

Almost surely, 2^13887582585 is an apocalyptic number.

13887582585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13887582585 is a deficient number, since it is larger than the sum of its proper divisors (9049328775).

13887582585 is a wasteful number, since it uses less digits than its factorization.

13887582585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29865808.

The product of its digits is 21504000, while the sum is 60.

The spelling of 13887582585 in words is "thirteen billion, eight hundred eighty-seven million, five hundred eighty-two thousand, five hundred eighty-five".