8464857860 has 12 divisors (see below), whose sum is σ = 17776201548. Its totient is φ = 3385943136.

The previous prime is 8464857859. The next prime is 8464857871. The reversal of 8464857860 is 687584648.

It can be written as a sum of positive squares in 2 ways, for example, as 5607313924 + 2857543936 = 74882^2 + 53456^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8464857796 and 8464857805.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 211621427 + ... + 211621466.

It is an arithmetic number, because the mean of its divisors is an integer number (1481350129).

Almost surely, 2^8464857860 is an apocalyptic number.

It is an amenable number.

8464857860 is an abundant number, since it is smaller than the sum of its proper divisors (9311343688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8464857860 is a wasteful number, since it uses less digits than its factorization.

8464857860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423242902 (or 423242900 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 56.

The square root of 8464857860 is about 92004.6621644795. The cubic root of 8464857860 is about 2038.0111543769.

The spelling of 8464857860 in words is "eight billion, four hundred sixty-four million, eight hundred fifty-seven thousand, eight hundred sixty".