8282660687991 has 24 divisors (see below), whose sum is σ = 12075954503184. Its totient is φ = 5470032683520.

The previous prime is 8282660687927. The next prime is 8282660687993. The reversal of 8282660687991 is 1997860662828.

8282660687991 is a `hidden beast` number, since 8 + 2 + 8 + 2 + 6 + 606 + 8 + 7 + 9 + 9 + 1 = 666.

It is not a de Polignac number, because 8282660687991 - 2⁶ = 8282660687927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8282660687993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51842311 + ... + 52001831.

It is an arithmetic number, because the mean of its divisors is an integer number (503164770966).

Almost surely, 2^{8282660687991} is an apocalyptic number.

8282660687991 is a deficient number, since it is larger than the sum of its proper divisors (3793293815193).

8282660687991 is a wasteful number, since it uses less digits than its factorization.

8282660687991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213551 (or 213548 counting only the distinct ones).

The product of its (nonzero) digits is 250822656, while the sum is 72.

The spelling of 8282660687991 in words is "eight trillion, two hundred eighty-two billion, six hundred sixty million, six hundred eighty-seven thousand, nine hundred ninety-one".