26171448137 has 2 divisors, whose sum is σ = 26171448138. Its totient is φ = 26171448136.

The previous prime is 26171448119. The next prime is 26171448203. The reversal of 26171448137 is 73184417162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25606720441 + 564727696 = 160021^2 + 23764^2 .

It is a cyclic number.

It is not a de Polignac number, because 26171448137 - 2⁶ = 26171448073 is a prime.

It is not a weakly prime, because it can be changed into another prime (26171418137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13085724068 + 13085724069.

It is an arithmetic number, because the mean of its divisors is an integer number (13085724069).

Almost surely, 2^26171448137 is an apocalyptic number.

It is an amenable number.

26171448137 is a deficient number, since it is larger than the sum of its proper divisors (1).

26171448137 is an equidigital number, since it uses as much as digits as its factorization.

26171448137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 44.

The spelling of 26171448137 in words is "twenty-six billion, one hundred seventy-one million, four hundred forty-eight thousand, one hundred thirty-seven".