87558559137 has 24 divisors (see below), whose sum is σ = 145891976256. Its totient is φ = 49565856096.

The previous prime is 87558559129. The next prime is 87558559201. The reversal of 87558559137 is 73195585578.

87558559137 is a `hidden beast` number, since 8 + 7 + 5 + 5 + 8 + 5 + 591 + 37 = 666.

It is not a de Polignac number, because 87558559137 - 2³ = 87558559129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (87558559637) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 6487738 + ... + 6501219.

It is an arithmetic number, because the mean of its divisors is an integer number (6078832344).

Almost surely, 2^87558559137 is an apocalyptic number.

It is an amenable number.

87558559137 is a deficient number, since it is larger than the sum of its proper divisors (58333417119).

87558559137 is a wasteful number, since it uses less digits than its factorization.

87558559137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12989077 (or 12989074 counting only the distinct ones).

The product of its digits is 52920000, while the sum is 63.

The spelling of 87558559137 in words is "eighty-seven billion, five hundred fifty-eight million, five hundred fifty-nine thousand, one hundred thirty-seven".