26774625121 has 2 divisors, whose sum is σ = 26774625122. Its totient is φ = 26774625120.

The previous prime is 26774625107. The next prime is 26774625127. The reversal of 26774625121 is 12152647762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14027086096 + 12747539025 = 118436^2 + 112905^2 .

It is a cyclic number.

It is not a de Polignac number, because 26774625121 - 2¹⁹ = 26774100833 is a prime.

It is not a weakly prime, because it can be changed into another prime (26774625127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13387312560 + 13387312561.

It is an arithmetic number, because the mean of its divisors is an integer number (13387312561).

Almost surely, 2^26774625121 is an apocalyptic number.

It is an amenable number.

26774625121 is a deficient number, since it is larger than the sum of its proper divisors (1).

26774625121 is an equidigital number, since it uses as much as digits as its factorization.

26774625121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 43.

The spelling of 26774625121 in words is "twenty-six billion, seven hundred seventy-four million, six hundred twenty-five thousand, one hundred twenty-one".