87117285252 has 96 divisors (see below), whose sum is σ = 207402467328. Its totient is φ = 28456614144.

The previous prime is 87117285209. The next prime is 87117285253. The reversal of 87117285252 is 25258271178.

It is not an unprimeable number, because it can be changed into a prime (87117285253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79413568 + ... + 79414664.

It is an arithmetic number, because the mean of its divisors is an integer number (2160442368).

Almost surely, 2^87117285252 is an apocalyptic number.

It is an amenable number.

87117285252 is an abundant number, since it is smaller than the sum of its proper divisors (120285182076).

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

87117285252 is a wasteful number, since it uses less digits than its factorization.

87117285252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825 (or 1823 counting only the distinct ones).

The product of its digits is 627200, while the sum is 48.

The spelling of 87117285252 in words is "eighty-seven billion, one hundred seventeen million, two hundred eighty-five thousand, two hundred fifty-two".