26250129251 has 2 divisors, whose sum is σ = 26250129252. Its totient is φ = 26250129250.

The previous prime is 26250129247. The next prime is 26250129263. The reversal of 26250129251 is 15292105262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26250129251 - 2² = 26250129247 is a prime.

It is not a weakly prime, because it can be changed into another prime (26250129281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13125064625 + 13125064626.

It is an arithmetic number, because the mean of its divisors is an integer number (13125064626).

Almost surely, 2^26250129251 is an apocalyptic number.

26250129251 is a deficient number, since it is larger than the sum of its proper divisors (1).

26250129251 is an equidigital number, since it uses as much as digits as its factorization.

26250129251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 26250129251 in words is "twenty-six billion, two hundred fifty million, one hundred twenty-nine thousand, two hundred fifty-one".