26145566827 has 2 divisors, whose sum is σ = 26145566828. Its totient is φ = 26145566826.

The previous prime is 26145566819. The next prime is 26145566851. The reversal of 26145566827 is 72866554162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26145566827 - 2³ = 26145566819 is a prime.

It is not a weakly prime, because it can be changed into another prime (26145567827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13072783413 + 13072783414.

It is an arithmetic number, because the mean of its divisors is an integer number (13072783414).

Almost surely, 2^26145566827 is an apocalyptic number.

26145566827 is a deficient number, since it is larger than the sum of its proper divisors (1).

26145566827 is an equidigital number, since it uses as much as digits as its factorization.

26145566827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4838400, while the sum is 52.

The spelling of 26145566827 in words is "twenty-six billion, one hundred forty-five million, five hundred sixty-six thousand, eight hundred twenty-seven".