26800000281 has 14 divisors (see below), whose sum is σ = 40181620170. Its totient is φ = 17866666368.

The previous prime is 26800000267. The next prime is 26800000291. The reversal of 26800000281 is 18200000862.

It can be written as a sum of positive squares in only one way, i.e., 22926805056 + 3873195225 = 151416^2 + 62235^2 .

It is not a de Polignac number, because 26800000281 - 2⁷ = 26800000153 is a prime.

It is a super-2 number, since 2×26800000281² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (26800000291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 18380616 + ... + 18382073.

Almost surely, 2^26800000281 is an apocalyptic number.

It is an amenable number.

26800000281 is a deficient number, since it is larger than the sum of its proper divisors (13381619889).

26800000281 is an frugal number, since it uses more digits than its factorization.

26800000281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36762707 (or 36762692 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The spelling of 26800000281 in words is "twenty-six billion, eight hundred million, two hundred eighty-one", and thus it is an aban number.