8461858660 has 12 divisors (see below), whose sum is σ = 17769903228. Its totient is φ = 3384743456.

The previous prime is 8461858651. The next prime is 8461858667. The reversal of 8461858660 is 668581648.

It can be written as a sum of positive squares in 2 ways, for example, as 6288807204 + 2173051456 = 79302^2 + 46616^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8461858598 and 8461858607.

It is not an unprimeable number, because it can be changed into a prime (8461858667) 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, 211546447 + ... + 211546486.

It is an arithmetic number, because the mean of its divisors is an integer number (1480825269).

Almost surely, 2^8461858660 is an apocalyptic number.

It is an amenable number.

8461858660 is an abundant number, since it is smaller than the sum of its proper divisors (9308044568).

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

8461858660 is a wasteful number, since it uses less digits than its factorization.

8461858660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423092942 (or 423092940 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 52.

The square root of 8461858660 is about 91988.3615464478. The cubic root of 8461858660 is about 2037.7704287322.

The spelling of 8461858660 in words is "eight billion, four hundred sixty-one million, eight hundred fifty-eight thousand, six hundred sixty".