27408252829 has 2 divisors, whose sum is σ = 27408252830. Its totient is φ = 27408252828.

The previous prime is 27408252827. The next prime is 27408252853. The reversal of 27408252829 is 92825280472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26995147204 + 413105625 = 164302^2 + 20325^2 .

It is a cyclic number.

It is not a de Polignac number, because 27408252829 - 2¹ = 27408252827 is a prime.

Together with 27408252827, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27408252827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13704126414 + 13704126415.

It is an arithmetic number, because the mean of its divisors is an integer number (13704126415).

Almost surely, 2^27408252829 is an apocalyptic number.

It is an amenable number.

27408252829 is a deficient number, since it is larger than the sum of its proper divisors (1).

27408252829 is an equidigital number, since it uses as much as digits as its factorization.

27408252829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 27408252829 in words is "twenty-seven billion, four hundred eight million, two hundred fifty-two thousand, eight hundred twenty-nine".