8945225831639 has 2 divisors, whose sum is σ = 8945225831640. Its totient is φ = 8945225831638.

The previous prime is 8945225831629. The next prime is 8945225831687. The reversal of 8945225831639 is 9361385225498.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8945225831639 - 2²⁸ = 8944957396183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8945225831629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4472612915819 + 4472612915820.

It is an arithmetic number, because the mean of its divisors is an integer number (4472612915820).

Almost surely, 2^{8945225831639} is an apocalyptic number.

8945225831639 is a deficient number, since it is larger than the sum of its proper divisors (1).

8945225831639 is an equidigital number, since it uses as much as digits as its factorization.

8945225831639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 111974400, while the sum is 65.

The spelling of 8945225831639 in words is "eight trillion, nine hundred forty-five billion, two hundred twenty-five million, eight hundred thirty-one thousand, six hundred thirty-nine".