86851389241 has 4 divisors (see below), whose sum is σ = 86868562000. Its totient is φ = 86834216484.

The previous prime is 86851389223. The next prime is 86851389281. The reversal of 86851389241 is 14298315868.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86851389241 - 2²⁵ = 86817834809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86851389281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8578791 + ... + 8588908.

It is an arithmetic number, because the mean of its divisors is an integer number (21717140500).

Almost surely, 2^86851389241 is an apocalyptic number.

It is an amenable number.

86851389241 is a deficient number, since it is larger than the sum of its proper divisors (17172759).

86851389241 is a wasteful number, since it uses less digits than its factorization.

86851389241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17172758.

The product of its digits is 3317760, while the sum is 55.

The spelling of 86851389241 in words is "eighty-six billion, eight hundred fifty-one million, three hundred eighty-nine thousand, two hundred forty-one".