26068207778 has 6 divisors (see below), whose sum is σ = 39102654171. Its totient is φ = 13033989722.

The previous prime is 26068207777. The next prime is 26068207783. The reversal of 26068207778 is 87770286062.

It can be written as a sum of positive squares in only one way, i.e., 13034103889 + 13034103889 = 114167^2 + 114167^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=114167.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26068207777) 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 in 2 ways as a sum of consecutive naturals, for example, 171251 + ... + 285417.

Almost surely, 2^26068207778 is an apocalyptic number.

26068207778 is a deficient number, since it is larger than the sum of its proper divisors (13034446393).

26068207778 is an frugal number, since it uses more digits than its factorization.

26068207778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228336 (or 114169 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 53.

The spelling of 26068207778 in words is "twenty-six billion, sixty-eight million, two hundred seven thousand, seven hundred seventy-eight".