27934498129 has 2 divisors, whose sum is σ = 27934498130. Its totient is φ = 27934498128.

The previous prime is 27934498127. The next prime is 27934498183. The reversal of 27934498129 is 92189443972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20304825025 + 7629673104 = 142495^2 + 87348^2 .

It is a cyclic number.

It is not a de Polignac number, because 27934498129 - 2¹ = 27934498127 is a prime.

Together with 27934498127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (27934498121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13967249064 + 13967249065.

It is an arithmetic number, because the mean of its divisors is an integer number (13967249065).

Almost surely, 2^27934498129 is an apocalyptic number.

It is an amenable number.

27934498129 is a deficient number, since it is larger than the sum of its proper divisors (1).

27934498129 is an equidigital number, since it uses as much as digits as its factorization.

27934498129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 58.

The spelling of 27934498129 in words is "twenty-seven billion, nine hundred thirty-four million, four hundred ninety-eight thousand, one hundred twenty-nine".