26101881 has 27 divisors (see below), whose sum is σ = 41140047. Its totient is φ = 15940080.

The previous prime is 26101861. The next prime is 26101883. The reversal of 26101881 is 18810162.

The square root of 26101881 is 5109.

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

It can be written as a sum of positive squares in only one way, i.e., 3861225 + 22240656 = 1965^2 + 4716^2 .

It is not a de Polignac number, because 26101881 - 2⁷ = 26101753 is a prime.

It is a super-2 number, since 2×26101881² = 1362616383476322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26101883) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 199186 + ... + 199316.

Almost surely, 2^26101881 is an apocalyptic number.

26101881 is the 5109-th square number.

26101881 is the 2555-th centered octagonal number.

It is an amenable number.

26101881 is a deficient number, since it is larger than the sum of its proper divisors (15038166).

26101881 is a wasteful number, since it uses less digits than its factorization.

26101881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The cubic root of 26101881 is about 296.6360538766.

The spelling of 26101881 in words is "twenty-six million, one hundred one thousand, eight hundred eighty-one".