26250275129 has 12 divisors (see below), whose sum is σ = 29277964716. Its totient is φ = 23395460928.

The previous prime is 26250275123. The next prime is 26250275141. The reversal of 26250275129 is 92157205262.

It can be written as a sum of positive squares in 6 ways, for example, as 441210025 + 25809065104 = 21005^2 + 160652^2 .

It is not a de Polignac number, because 26250275129 - 2⁸ = 26250274873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26250275123) 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 in 11 ways as a sum of consecutive naturals, for example, 1189574 + ... + 1211439.

It is an arithmetic number, because the mean of its divisors is an integer number (2439830393).

Almost surely, 2^26250275129 is an apocalyptic number.

26250275129 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

26250275129 is a deficient number, since it is larger than the sum of its proper divisors (3027689587).

26250275129 is a wasteful number, since it uses less digits than its factorization.

26250275129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401084 (or 2401055 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 26250275129 in words is "twenty-six billion, two hundred fifty million, two hundred seventy-five thousand, one hundred twenty-nine".