8639413212667 has 2 divisors, whose sum is σ = 8639413212668. Its totient is φ = 8639413212666.

The previous prime is 8639413212649. The next prime is 8639413212701. The reversal of 8639413212667 is 7662123149368.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8639413212667 - 2²³ = 8639404824059 is a prime.

It is not a weakly prime, because it can be changed into another prime (8639413212167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4319706606333 + 4319706606334.

It is an arithmetic number, because the mean of its divisors is an integer number (4319706606334).

Almost surely, 2^{8639413212667} is an apocalyptic number.

8639413212667 is a deficient number, since it is larger than the sum of its proper divisors (1).

8639413212667 is an equidigital number, since it uses as much as digits as its factorization.

8639413212667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 58.

The spelling of 8639413212667 in words is "eight trillion, six hundred thirty-nine billion, four hundred thirteen million, two hundred twelve thousand, six hundred sixty-seven".