8468791081 has 8 divisors (see below), whose sum is σ = 8546372744. Its totient is φ = 8391548160.

The previous prime is 8468791063. The next prime is 8468791087. The reversal of 8468791081 is 1801978648.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 317409856 + 8151381225 = 17816^2 + 90285^2 .

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 8468791081 - 2¹⁵ = 8468758313 is a prime.

It is a super-2 number, since 2×8468791081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8468791087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34320 + ... + 134593.

It is an arithmetic number, because the mean of its divisors is an integer number (1068296593).

Almost surely, 2^8468791081 is an apocalyptic number.

It is an amenable number.

8468791081 is a deficient number, since it is larger than the sum of its proper divisors (77581663).

8468791081 is a wasteful number, since it uses less digits than its factorization.

8468791081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169371.

The product of its (nonzero) digits is 774144, while the sum is 52.

The square root of 8468791081 is about 92026.0347999413. The cubic root of 8468791081 is about 2038.3267614502.

The spelling of 8468791081 in words is "eight billion, four hundred sixty-eight million, seven hundred ninety-one thousand, eighty-one".