27726016429 has 2 divisors, whose sum is σ = 27726016430. Its totient is φ = 27726016428.

The previous prime is 27726016411. The next prime is 27726016459. The reversal of 27726016429 is 92461062772.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22672228329 + 5053788100 = 150573^2 + 71090^2 .

It is a cyclic number.

It is not a de Polignac number, because 27726016429 - 2⁷ = 27726016301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27726016459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13863008214 + 13863008215.

It is an arithmetic number, because the mean of its divisors is an integer number (13863008215).

Almost surely, 2^27726016429 is an apocalyptic number.

It is an amenable number.

27726016429 is a deficient number, since it is larger than the sum of its proper divisors (1).

27726016429 is an equidigital number, since it uses as much as digits as its factorization.

27726016429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 27726016429 in words is "twenty-seven billion, seven hundred twenty-six million, sixteen thousand, four hundred twenty-nine".