27409808453 has 2 divisors, whose sum is σ = 27409808454. Its totient is φ = 27409808452.

The previous prime is 27409808399. The next prime is 27409808467. The reversal of 27409808453 is 35480890472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22529109409 + 4880699044 = 150097^2 + 69862^2 .

It is a cyclic number.

It is not a de Polignac number, because 27409808453 - 2²² = 27405614149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27409808753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13704904226 + 13704904227.

It is an arithmetic number, because the mean of its divisors is an integer number (13704904227).

Almost surely, 2^27409808453 is an apocalyptic number.

It is an amenable number.

27409808453 is a deficient number, since it is larger than the sum of its proper divisors (1).

27409808453 is an equidigital number, since it uses as much as digits as its factorization.

27409808453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 27409808453 in words is "twenty-seven billion, four hundred nine million, eight hundred eight thousand, four hundred fifty-three".