26661461 has 2 divisors, whose sum is σ = 26661462. Its totient is φ = 26661460.

The previous prime is 26661443. The next prime is 26661487. The reversal of 26661461 is 16416662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24196561 + 2464900 = 4919^2 + 1570^2 .

It is a cyclic number.

It is not a de Polignac number, because 26661461 - 2¹⁴ = 26645077 is a prime.

It is a Chen prime.

It is equal to p_1663268 and since 26661461 and 1663268 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26601461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13330730 + 13330731.

It is an arithmetic number, because the mean of its divisors is an integer number (13330731).

Almost surely, 2^26661461 is an apocalyptic number.

It is an amenable number.

26661461 is a deficient number, since it is larger than the sum of its proper divisors (1).

26661461 is an equidigital number, since it uses as much as digits as its factorization.

26661461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 26661461 is about 5163.4737338346. The cubic root of 26661461 is about 298.7408745892.

The spelling of 26661461 in words is "twenty-six million, six hundred sixty-one thousand, four hundred sixty-one".