86378158686164 has 12 divisors (see below), whose sum is σ = 151522545669600. Its totient is φ = 43086002780568.

The previous prime is 86378158686163. The next prime is 86378158686179. The reversal of 86378158686164 is 46168685187368.

It is a super-2 number, since 2×86378158686164² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86378158686163) 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, 25769138744 + ... + 25769142095.

It is an arithmetic number, because the mean of its divisors is an integer number (12626878805800).

Almost surely, 2^{86378158686164} is an apocalyptic number.

It is an amenable number.

86378158686164 is a deficient number, since it is larger than the sum of its proper divisors (65144386983436).

86378158686164 is a wasteful number, since it uses less digits than its factorization.

86378158686164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51538281262 (or 51538281260 counting only the distinct ones).

The product of its digits is 2229534720, while the sum is 77.

The spelling of 86378158686164 in words is "eighty-six trillion, three hundred seventy-eight billion, one hundred fifty-eight million, six hundred eighty-six thousand, one hundred sixty-four".