26717143121 has 2 divisors, whose sum is σ = 26717143122. Its totient is φ = 26717143120.

The previous prime is 26717143109. The next prime is 26717143127. The reversal of 26717143121 is 12134171762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26021238721 + 695904400 = 161311^2 + 26380^2 .

It is a cyclic number.

It is not a de Polignac number, because 26717143121 - 2¹⁸ = 26716880977 is a prime.

It is not a weakly prime, because it can be changed into another prime (26717143127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13358571560 + 13358571561.

It is an arithmetic number, because the mean of its divisors is an integer number (13358571561).

Almost surely, 2^26717143121 is an apocalyptic number.

It is an amenable number.

26717143121 is a deficient number, since it is larger than the sum of its proper divisors (1).

26717143121 is an equidigital number, since it uses as much as digits as its factorization.

26717143121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 35.

The spelling of 26717143121 in words is "twenty-six billion, seven hundred seventeen million, one hundred forty-three thousand, one hundred twenty-one".