87206789117 has 8 divisors (see below), whose sum is σ = 100100121600. Its totient is φ = 74422261584.

The previous prime is 87206789113. The next prime is 87206789119. The reversal of 87206789117 is 71198760278.

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

It is a cyclic number.

It is not a de Polignac number, because 87206789117 - 2² = 87206789113 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 (87206789113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27199517 + ... + 27202722.

It is an arithmetic number, because the mean of its divisors is an integer number (12512515200).

Almost surely, 2^87206789117 is an apocalyptic number.

It is an amenable number.

87206789117 is a deficient number, since it is larger than the sum of its proper divisors (12893332483).

87206789117 is a wasteful number, since it uses less digits than its factorization.

87206789117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54402475.

The product of its (nonzero) digits is 2370816, while the sum is 56.

The spelling of 87206789117 in words is "eighty-seven billion, two hundred six million, seven hundred eighty-nine thousand, one hundred seventeen".