26124042169 has 2 divisors, whose sum is σ = 26124042170. Its totient is φ = 26124042168.

The previous prime is 26124042127. The next prime is 26124042173. The reversal of 26124042169 is 96124042162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15844515625 + 10279526544 = 125875^2 + 101388^2 .

It is a cyclic number.

It is not a de Polignac number, because 26124042169 - 2⁷ = 26124042041 is a prime.

It is a super-2 number, since 2×26124042169² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26124048169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13062021084 + 13062021085.

It is an arithmetic number, because the mean of its divisors is an integer number (13062021085).

Almost surely, 2^26124042169 is an apocalyptic number.

It is an amenable number.

26124042169 is a deficient number, since it is larger than the sum of its proper divisors (1).

26124042169 is an equidigital number, since it uses as much as digits as its factorization.

26124042169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 26124042169 in words is "twenty-six billion, one hundred twenty-four million, forty-two thousand, one hundred sixty-nine".