26283867129 has 27 divisors (see below), whose sum is σ = 41120555853. Its totient is φ = 16170796512.

The previous prime is 26283867121. The next prime is 26283867131. The reversal of 26283867129 is 92176838262.

The square root of 26283867129 is 162123.

It is a perfect power (a square), and thus also a powerful number.

26283867129 is a `hidden beast` number, since 2 + 628 + 3 + 8 + 6 + 7 + 1 + 2 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4674867129 + 21609000000 = 68373^2 + 147000^2 .

It is not a de Polignac number, because 26283867129 - 2³ = 26283867121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26283867121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6320719 + ... + 6324875.

Almost surely, 2^26283867129 is an apocalyptic number.

26283867129 is the 162123-rd square number.

26283867129 is the 81062-nd centered octagonal number.

It is an amenable number.

26283867129 is a deficient number, since it is larger than the sum of its proper divisors (14836688724).

26283867129 is an frugal number, since it uses more digits than its factorization.

26283867129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8346 (or 4173 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 26283867129 in words is "twenty-six billion, two hundred eighty-three million, eight hundred sixty-seven thousand, one hundred twenty-nine".