116856870517 has 4 divisors (see below), whose sum is σ = 116869262796. Its totient is φ = 116844478240.

The previous prime is 116856870491. The next prime is 116856870589. The reversal of 116856870517 is 715078658611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75237198436 + 41619672081 = 274294^2 + 204009^2 .

It is a cyclic number.

It is not a de Polignac number, because 116856870517 - 2³⁵ = 82497132149 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 (116856870617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6181984 + ... + 6200857.

It is an arithmetic number, because the mean of its divisors is an integer number (29217315699).

Almost surely, 2^116856870517 is an apocalyptic number.

It is an amenable number.

116856870517 is a deficient number, since it is larger than the sum of its proper divisors (12392279).

116856870517 is an equidigital number, since it uses as much as digits as its factorization.

116856870517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12392278.

The product of its (nonzero) digits is 2822400, while the sum is 55.

The spelling of 116856870517 in words is "one hundred sixteen billion, eight hundred fifty-six million, eight hundred seventy thousand, five hundred seventeen".