8666832877 has 2 divisors, whose sum is σ = 8666832878. Its totient is φ = 8666832876.

The previous prime is 8666832871. The next prime is 8666832913. The reversal of 8666832877 is 7782386668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8270265481 + 396567396 = 90941^2 + 19914^2 .

It is a cyclic number.

It is not a de Polignac number, because 8666832877 - 2⁷ = 8666832749 is a prime.

It is a super-2 number, since 2×8666832877² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8666832871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4333416438 + 4333416439.

It is an arithmetic number, because the mean of its divisors is an integer number (4333416439).

Almost surely, 2^8666832877 is an apocalyptic number.

It is an amenable number.

8666832877 is a deficient number, since it is larger than the sum of its proper divisors (1).

8666832877 is an equidigital number, since it uses as much as digits as its factorization.

8666832877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32514048, while the sum is 61.

The square root of 8666832877 is about 93095.8263135357. The cubic root of 8666832877 is about 2054.0931802938.

The spelling of 8666832877 in words is "eight billion, six hundred sixty-six million, eight hundred thirty-two thousand, eight hundred seventy-seven".