86178868371 has 6 divisors (see below), whose sum is σ = 124480587660. Its totient is φ = 57452578908.

The previous prime is 86178868361. The next prime is 86178868387. The reversal of 86178868371 is 17386887168.

86178868371 is a `hidden beast` number, since 8 + 617 + 8 + 8 + 6 + 8 + 3 + 7 + 1 = 666.

It is not a de Polignac number, because 86178868371 - 2¹⁰ = 86178867347 is a prime.

It is a super-2 number, since 2×86178868371² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86178868299 and 86178868308.

It is not an unprimeable number, because it can be changed into a prime (86178868301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4787714901 + ... + 4787714918.

It is an arithmetic number, because the mean of its divisors is an integer number (20746764610).

Almost surely, 2^86178868371 is an apocalyptic number.

86178868371 is a deficient number, since it is larger than the sum of its proper divisors (38301719289).

86178868371 is a wasteful number, since it uses less digits than its factorization.

86178868371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9575429825 (or 9575429822 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 63.

The spelling of 86178868371 in words is "eighty-six billion, one hundred seventy-eight million, eight hundred sixty-eight thousand, three hundred seventy-one".