26448488653 has 2 divisors, whose sum is σ = 26448488654. Its totient is φ = 26448488652.

The previous prime is 26448488639. The next prime is 26448488669. The reversal of 26448488653 is 35688484462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20891233444 + 5557255209 = 144538^2 + 74547^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26448488653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26448483653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13224244326 + 13224244327.

It is an arithmetic number, because the mean of its divisors is an integer number (13224244327).

Almost surely, 2^26448488653 is an apocalyptic number.

It is an amenable number.

26448488653 is a deficient number, since it is larger than the sum of its proper divisors (1).

26448488653 is an equidigital number, since it uses as much as digits as its factorization.

26448488653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35389440, while the sum is 58.

The spelling of 26448488653 in words is "twenty-six billion, four hundred forty-eight million, four hundred eighty-eight thousand, six hundred fifty-three".