26122643 has 2 divisors, whose sum is σ = 26122644. Its totient is φ = 26122642.

The previous prime is 26122639. The next prime is 26122651. The reversal of 26122643 is 34622162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26122643 - 2² = 26122639 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26122633) 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, 13061321 + 13061322.

It is an arithmetic number, because the mean of its divisors is an integer number (13061322).

Almost surely, 2^26122643 is an apocalyptic number.

26122643 is a deficient number, since it is larger than the sum of its proper divisors (1).

26122643 is an equidigital number, since it uses as much as digits as its factorization.

26122643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 26.

The square root of 26122643 is about 5111.0315005877. The cubic root of 26122643 is about 296.7146832742.

The spelling of 26122643 in words is "twenty-six million, one hundred twenty-two thousand, six hundred forty-three".