8668507231 has 2 divisors, whose sum is σ = 8668507232. Its totient is φ = 8668507230.

The previous prime is 8668507219. The next prime is 8668507259. The reversal of 8668507231 is 1327058668.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8668507231 - 2²¹ = 8666410079 is a prime.

It is a super-3 number, since 3×8668507231³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8668507261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4334253615 + 4334253616.

It is an arithmetic number, because the mean of its divisors is an integer number (4334253616).

Almost surely, 2^8668507231 is an apocalyptic number.

8668507231 is a deficient number, since it is larger than the sum of its proper divisors (1).

8668507231 is an equidigital number, since it uses as much as digits as its factorization.

8668507231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 8668507231 is about 93104.8185165515. The cubic root of 8668507231 is about 2054.2254492063.

The spelling of 8668507231 in words is "eight billion, six hundred sixty-eight million, five hundred seven thousand, two hundred thirty-one".