8459357661 has 16 divisors (see below), whose sum is σ = 12543891520. Its totient is φ = 5634392400.

The previous prime is 8459357659. The next prime is 8459357671. The reversal of 8459357661 is 1667539548.

8459357661 is a `hidden beast` number, since 8 + 4 + 5 + 9 + 3 + 576 + 61 = 666.

8459357661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8459357661 - 2¹ = 8459357659 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8459357598 and 8459357607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8459357671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113815 + ... + 172836.

It is an arithmetic number, because the mean of its divisors is an integer number (783993220).

Almost surely, 2^8459357661 is an apocalyptic number.

It is an amenable number.

8459357661 is a deficient number, since it is larger than the sum of its proper divisors (4084533859).

8459357661 is a wasteful number, since it uses less digits than its factorization.

8459357661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287753 (or 287747 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 8459357661 is about 91974.7664362351. The cubic root of 8459357661 is about 2037.5696468395.

The spelling of 8459357661 in words is "eight billion, four hundred fifty-nine million, three hundred fifty-seven thousand, six hundred sixty-one".