8486397861 has 16 divisors (see below), whose sum is σ = 12321451200. Its totient is φ = 5175007488.

The previous prime is 8486397797. The next prime is 8486397877. The reversal of 8486397861 is 1687936848.

It is not a de Polignac number, because 8486397861 - 2⁶ = 8486397797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8486397795 and 8486397804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8486396861) 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 15 ways as a sum of consecutive naturals, for example, 2565316 + ... + 2568621.

It is an arithmetic number, because the mean of its divisors is an integer number (770090700).

Almost surely, 2^8486397861 is an apocalyptic number.

It is an amenable number.

8486397861 is a deficient number, since it is larger than the sum of its proper divisors (3835053339).

8486397861 is a wasteful number, since it uses less digits than its factorization.

8486397861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5133988.

The product of its digits is 13934592, while the sum is 60.

The square root of 8486397861 is about 92121.6470814542. The cubic root of 8486397861 is about 2039.7383572073.

The spelling of 8486397861 in words is "eight billion, four hundred eighty-six million, three hundred ninety-seven thousand, eight hundred sixty-one".