86868518093 has 16 divisors (see below), whose sum is σ = 109688567040. Its totient is φ = 67031897856.

The previous prime is 86868518081. The next prime is 86868518123. The reversal of 86868518093 is 39081586868.

It is not a de Polignac number, because 86868518093 - 2²⁰ = 86867469517 is a prime.

It is a super-2 number, since 2×86868518093² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86868518053) 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 15 ways as a sum of consecutive naturals, for example, 15866558 + ... + 15872031.

It is an arithmetic number, because the mean of its divisors is an integer number (6855535440).

Almost surely, 2^86868518093 is an apocalyptic number.

It is an amenable number.

86868518093 is a deficient number, since it is larger than the sum of its proper divisors (22820048947).

86868518093 is a wasteful number, since it uses less digits than its factorization.

86868518093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31738636.

The product of its (nonzero) digits is 19906560, while the sum is 62.

The spelling of 86868518093 in words is "eighty-six billion, eight hundred sixty-eight million, five hundred eighteen thousand, ninety-three".