26042161777 has 2 divisors, whose sum is σ = 26042161778. Its totient is φ = 26042161776.

The previous prime is 26042161721. The next prime is 26042161787. The reversal of 26042161777 is 77716124062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13941941776 + 12100220001 = 118076^2 + 110001^2 .

It is a cyclic number.

It is not a de Polignac number, because 26042161777 - 2¹¹ = 26042159729 is a prime.

It is not a weakly prime, because it can be changed into another prime (26042161787) 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, 13021080888 + 13021080889.

It is an arithmetic number, because the mean of its divisors is an integer number (13021080889).

Almost surely, 2^26042161777 is an apocalyptic number.

It is an amenable number.

26042161777 is a deficient number, since it is larger than the sum of its proper divisors (1).

26042161777 is an equidigital number, since it uses as much as digits as its factorization.

26042161777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 26042161777 in words is "twenty-six billion, forty-two million, one hundred sixty-one thousand, seven hundred seventy-seven".