26250129281 has 2 divisors, whose sum is σ = 26250129282. Its totient is φ = 26250129280.

The previous prime is 26250129263. The next prime is 26250129299. The reversal of 26250129281 is 18292105262.

It is a balanced prime because it is at equal distance from previous prime (26250129263) and next prime (26250129299).

It can be written as a sum of positive squares in only one way, i.e., 25148885056 + 1101244225 = 158584^2 + 33185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26250129281 is a prime.

It is a super-2 number, since 2×26250129281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26250129251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13125064640 + 13125064641.

It is an arithmetic number, because the mean of its divisors is an integer number (13125064641).

Almost surely, 2^26250129281 is an apocalyptic number.

It is an amenable number.

26250129281 is a deficient number, since it is larger than the sum of its proper divisors (1).

26250129281 is an equidigital number, since it uses as much as digits as its factorization.

26250129281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 26250129281 in words is "twenty-six billion, two hundred fifty million, one hundred twenty-nine thousand, two hundred eighty-one".