26844007129 has 2 divisors, whose sum is σ = 26844007130. Its totient is φ = 26844007128.

The previous prime is 26844007117. The next prime is 26844007133. The reversal of 26844007129 is 92170044862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18809573904 + 8034433225 = 137148^2 + 89635^2 .

It is a cyclic number.

It is not a de Polignac number, because 26844007129 - 2¹⁵ = 26843974361 is a prime.

It is not a weakly prime, because it can be changed into another prime (26844008129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13422003564 + 13422003565.

It is an arithmetic number, because the mean of its divisors is an integer number (13422003565).

Almost surely, 2^26844007129 is an apocalyptic number.

It is an amenable number.

26844007129 is a deficient number, since it is larger than the sum of its proper divisors (1).

26844007129 is an equidigital number, since it uses as much as digits as its factorization.

26844007129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 26844007129 in words is "twenty-six billion, eight hundred forty-four million, seven thousand, one hundred twenty-nine".