26844090629 has 2 divisors, whose sum is σ = 26844090630. Its totient is φ = 26844090628.

The previous prime is 26844090619. The next prime is 26844090643. The reversal of 26844090629 is 92609044862.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25930660900 + 913429729 = 161030^2 + 30223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26844090629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26844090619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13422045314 + 13422045315.

It is an arithmetic number, because the mean of its divisors is an integer number (13422045315).

Almost surely, 2^26844090629 is an apocalyptic number.

It is an amenable number.

26844090629 is a deficient number, since it is larger than the sum of its proper divisors (1).

26844090629 is an equidigital number, since it uses as much as digits as its factorization.

26844090629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 26844090629 in words is "twenty-six billion, eight hundred forty-four million, ninety thousand, six hundred twenty-nine".