8642054272639 has 2 divisors, whose sum is σ = 8642054272640. Its totient is φ = 8642054272638.

The previous prime is 8642054272633. The next prime is 8642054272681. The reversal of 8642054272639 is 9362724502468.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8642054272639 - 2⁹ = 8642054272127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8642054272633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4321027136319 + 4321027136320.

It is an arithmetic number, because the mean of its divisors is an integer number (4321027136320).

Almost surely, 2^{8642054272639} is an apocalyptic number.

8642054272639 is a deficient number, since it is larger than the sum of its proper divisors (1).

8642054272639 is an equidigital number, since it uses as much as digits as its factorization.

8642054272639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34836480, while the sum is 58.

The spelling of 8642054272639 in words is "eight trillion, six hundred forty-two billion, fifty-four million, two hundred seventy-two thousand, six hundred thirty-nine".