8117606405 has 16 divisors (see below), whose sum is σ = 9928913904. Its totient is φ = 6368993280.

The previous prime is 8117606383. The next prime is 8117606423. The reversal of 8117606405 is 5046067118.

It can be written as a sum of positive squares in 8 ways, for example, as 20666116 + 8096940289 = 4546^2 + 89983^2 .

It is not a de Polignac number, because 8117606405 - 2¹⁰ = 8117605381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 911675 + ... + 920535.

It is an arithmetic number, because the mean of its divisors is an integer number (620557119).

Almost surely, 2^8117606405 is an apocalyptic number.

It is an amenable number.

8117606405 is a deficient number, since it is larger than the sum of its proper divisors (1811307499).

8117606405 is a wasteful number, since it uses less digits than its factorization.

8117606405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12376.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 8117606405 is about 90097.7602662796. The cubic root of 8117606405 is about 2009.7528969435.

The spelling of 8117606405 in words is "eight billion, one hundred seventeen million, six hundred six thousand, four hundred five".