26445433453 has 2 divisors, whose sum is σ = 26445433454. Its totient is φ = 26445433452.

The previous prime is 26445433447. The next prime is 26445433507. The reversal of 26445433453 is 35433454462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20898460969 + 5546972484 = 144563^2 + 74478^2 .

It is a cyclic number.

It is not a de Polignac number, because 26445433453 - 2¹³ = 26445425261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26445433153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13222716726 + 13222716727.

It is an arithmetic number, because the mean of its divisors is an integer number (13222716727).

Almost surely, 2^26445433453 is an apocalyptic number.

It is an amenable number.

26445433453 is a deficient number, since it is larger than the sum of its proper divisors (1).

26445433453 is an equidigital number, since it uses as much as digits as its factorization.

26445433453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2073600, while the sum is 43.

The spelling of 26445433453 in words is "twenty-six billion, four hundred forty-five million, four hundred thirty-three thousand, four hundred fifty-three".