8540722836991 has 2 divisors, whose sum is σ = 8540722836992. Its totient is φ = 8540722836990.

The previous prime is 8540722836907. The next prime is 8540722837057. The reversal of 8540722836991 is 1996382270458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8540722836991 - 2²¹ = 8540720739839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8540725836991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4270361418495 + 4270361418496.

It is an arithmetic number, because the mean of its divisors is an integer number (4270361418496).

It is a 2-persistent number, because it is pandigital, and so is 2⋅8540722836991 = 17081445673982, but 3⋅8540722836991 = 25622168510973 is not.

Almost surely, 2^{8540722836991} is an apocalyptic number.

8540722836991 is a deficient number, since it is larger than the sum of its proper divisors (1).

8540722836991 is an equidigital number, since it uses as much as digits as its factorization.

8540722836991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 8540722836991 in words is "eight trillion, five hundred forty billion, seven hundred twenty-two million, eight hundred thirty-six thousand, nine hundred ninety-one".