8168840461 has 8 divisors (see below), whose sum is σ = 8285739264. Its totient is φ = 8051993040.

The previous prime is 8168840453. The next prime is 8168840479. The reversal of 8168840461 is 1640488618.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8168840461 - 2³ = 8168840453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8168840441) 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 7 ways as a sum of consecutive naturals, for example, 402391 + ... + 422203.

It is an arithmetic number, because the mean of its divisors is an integer number (1035717408).

Almost surely, 2^8168840461 is an apocalyptic number.

It is an amenable number.

8168840461 is a deficient number, since it is larger than the sum of its proper divisors (116898803).

8168840461 is a wasteful number, since it uses less digits than its factorization.

8168840461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25691.

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 8168840461 is about 90381.6378530507. The cubic root of 8168840461 is about 2013.9721999241.

The spelling of 8168840461 in words is "eight billion, one hundred sixty-eight million, eight hundred forty thousand, four hundred sixty-one".