26055783121 has 2 divisors, whose sum is σ = 26055783122. Its totient is φ = 26055783120.

The previous prime is 26055783113. The next prime is 26055783139. The reversal of 26055783121 is 12138755062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19403097025 + 6652686096 = 139295^2 + 81564^2 .

It is a cyclic number.

It is not a de Polignac number, because 26055783121 - 2³ = 26055783113 is a prime.

It is not a weakly prime, because it can be changed into another prime (26055783101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13027891560 + 13027891561.

It is an arithmetic number, because the mean of its divisors is an integer number (13027891561).

Almost surely, 2^26055783121 is an apocalyptic number.

It is an amenable number.

26055783121 is a deficient number, since it is larger than the sum of its proper divisors (1).

26055783121 is an equidigital number, since it uses as much as digits as its factorization.

26055783121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 26055783121 in words is "twenty-six billion, fifty-five million, seven hundred eighty-three thousand, one hundred twenty-one".