87117281711 has 8 divisors (see below), whose sum is σ = 92291004720. Its totient is φ = 81949022848.

The previous prime is 87117281701. The next prime is 87117281759. The reversal of 87117281711 is 11718271178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87117281711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87117281701) 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 7 ways as a sum of consecutive naturals, for example, 1333181 + ... + 1396998.

It is an arithmetic number, because the mean of its divisors is an integer number (11536375590).

Almost surely, 2^87117281711 is an apocalyptic number.

87117281711 is a deficient number, since it is larger than the sum of its proper divisors (5173723009).

87117281711 is a wasteful number, since it uses less digits than its factorization.

87117281711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732073.

The product of its digits is 43904, while the sum is 44.

The spelling of 87117281711 in words is "eighty-seven billion, one hundred seventeen million, two hundred eighty-one thousand, seven hundred eleven".