26271881 has 2 divisors, whose sum is σ = 26271882. Its totient is φ = 26271880.

The previous prime is 26271877. The next prime is 26271923. The reversal of 26271881 is 18817262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17774656 + 8497225 = 4216^2 + 2915^2 .

It is a cyclic number.

It is not a de Polignac number, because 26271881 - 2² = 26271877 is a prime.

It is a super-2 number, since 2×26271881² = 1380423462556322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26271811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13135940 + 13135941.

It is an arithmetic number, because the mean of its divisors is an integer number (13135941).

Almost surely, 2^26271881 is an apocalyptic number.

It is an amenable number.

26271881 is a deficient number, since it is larger than the sum of its proper divisors (1).

26271881 is an equidigital number, since it uses as much as digits as its factorization.

26271881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 35.

The square root of 26271881 is about 5125.6103051246. The cubic root of 26271881 is about 297.2786518195.

The spelling of 26271881 in words is "twenty-six million, two hundred seventy-one thousand, eight hundred eighty-one".