86170784847 has 64 divisors (see below), whose sum is σ = 140228419584. Its totient is φ = 46023966720.

The previous prime is 86170784827. The next prime is 86170784851. The reversal of 86170784847 is 74848707168.

It is not a de Polignac number, because 86170784847 - 2¹⁰ = 86170783823 is a prime.

It is a super-2 number, since 2×86170784847² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86170784807) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3286863 + ... + 3312975.

It is an arithmetic number, because the mean of its divisors is an integer number (2191069056).

Almost surely, 2^86170784847 is an apocalyptic number.

86170784847 is a deficient number, since it is larger than the sum of its proper divisors (54057634737).

86170784847 is a wasteful number, since it uses less digits than its factorization.

86170784847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26328.

The product of its (nonzero) digits is 16859136, while the sum is 60.

The spelling of 86170784847 in words is "eighty-six billion, one hundred seventy million, seven hundred eighty-four thousand, eight hundred forty-seven".