86916860089 has 4 divisors (see below), whose sum is σ = 87686035956. Its totient is φ = 86147684224.

The previous prime is 86916860053. The next prime is 86916860131. The reversal of 86916860089 is 98006861968.

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 44236605625 + 42680254464 = 210325^2 + 206592^2 .

It is a cyclic number.

It is not a de Polignac number, because 86916860089 - 2¹⁷ = 86916729017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86916860029) 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, 384587764 + ... + 384587989.

It is an arithmetic number, because the mean of its divisors is an integer number (21921508989).

Almost surely, 2^86916860089 is an apocalyptic number.

It is an amenable number.

86916860089 is a deficient number, since it is larger than the sum of its proper divisors (769175867).

86916860089 is a wasteful number, since it uses less digits than its factorization.

86916860089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769175866.

The product of its (nonzero) digits is 8957952, while the sum is 61.

The spelling of 86916860089 in words is "eighty-six billion, nine hundred sixteen million, eight hundred sixty thousand, eighty-nine".