26445438871 has 2 divisors, whose sum is σ = 26445438872. Its totient is φ = 26445438870.

The previous prime is 26445438853. The next prime is 26445438913. The reversal of 26445438871 is 17883454462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26445438871 - 2⁵ = 26445438839 is a prime.

It is a super-2 number, since 2×26445438871² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26445438841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13222719435 + 13222719436.

It is an arithmetic number, because the mean of its divisors is an integer number (13222719436).

Almost surely, 2^26445438871 is an apocalyptic number.

26445438871 is a deficient number, since it is larger than the sum of its proper divisors (1).

26445438871 is an equidigital number, since it uses as much as digits as its factorization.

26445438871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5160960, while the sum is 52.

The spelling of 26445438871 in words is "twenty-six billion, four hundred forty-five million, four hundred thirty-eight thousand, eight hundred seventy-one".