8117404669 has 12 divisors (see below), whose sum is σ = 8943100348. Its totient is φ = 7362368640.

The previous prime is 8117404663. The next prime is 8117404769. The reversal of 8117404669 is 9664047118.

It can be written as a sum of positive squares in 2 ways, for example, as 4982524569 + 3134880100 = 70587^2 + 55990^2 .

It is not a de Polignac number, because 8117404669 - 2³ = 8117404661 is a prime.

It is a super-2 number, since 2×8117404669² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8117404661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25074 + ... + 129859.

Almost surely, 2^8117404669 is an apocalyptic number.

It is an amenable number.

8117404669 is a deficient number, since it is larger than the sum of its proper divisors (825695679).

8117404669 is a wasteful number, since it uses less digits than its factorization.

8117404669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155388 (or 155377 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 8117404669 is about 90096.6407198404. The cubic root of 8117404669 is about 2009.7362482398.

The spelling of 8117404669 in words is "eight billion, one hundred seventeen million, four hundred four thousand, six hundred sixty-nine".