8461293281 has 8 divisors (see below), whose sum is σ = 9765793344. Its totient is φ = 7180729200.

The previous prime is 8461293277. The next prime is 8461293283. The reversal of 8461293281 is 1823921648.

It is a happy number.

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 8461293281 - 2² = 8461293277 is a prime.

It is a super-2 number, since 2×8461293281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8461293283) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5983235 + ... + 5984648.

It is an arithmetic number, because the mean of its divisors is an integer number (1220724168).

Almost surely, 2^8461293281 is an apocalyptic number.

It is an amenable number.

8461293281 is a deficient number, since it is larger than the sum of its proper divisors (1304500063).

8461293281 is a wasteful number, since it uses less digits than its factorization.

8461293281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11967991.

The product of its digits is 165888, while the sum is 44.

The square root of 8461293281 is about 91985.2883943949. The cubic root of 8461293281 is about 2037.7250431846.

The spelling of 8461293281 in words is "eight billion, four hundred sixty-one million, two hundred ninety-three thousand, two hundred eighty-one".