26844090619 has 2 divisors, whose sum is σ = 26844090620. Its totient is φ = 26844090618.

The previous prime is 26844090571. The next prime is 26844090629. The reversal of 26844090619 is 91609044862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26844090619 - 2¹⁹ = 26843566331 is a prime.

It is a super-2 number, since 2×26844090619² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26844090629) 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, 13422045309 + 13422045310.

It is an arithmetic number, because the mean of its divisors is an integer number (13422045310).

Almost surely, 2^26844090619 is an apocalyptic number.

26844090619 is a deficient number, since it is larger than the sum of its proper divisors (1).

26844090619 is an equidigital number, since it uses as much as digits as its factorization.

26844090619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 26844090619 in words is "twenty-six billion, eight hundred forty-four million, ninety thousand, six hundred nineteen".