27102049129 has 3 divisors (see below), whose sum is σ = 27102213757. Its totient is φ = 27101884502.

The previous prime is 27102049123. The next prime is 27102049147. The reversal of 27102049129 is 92194020172.

The square root of 27102049129 is 164627.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 27102049129 - 2¹¹ = 27102047081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27102049123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 82314 + ... + 246940.

Almost surely, 2^27102049129 is an apocalyptic number.

27102049129 is the 164627-th square number.

27102049129 is the 82314-th centered octagonal number.

It is an amenable number.

27102049129 is a deficient number, since it is larger than the sum of its proper divisors (164628).

27102049129 is an frugal number, since it uses more digits than its factorization.

27102049129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329254 (or 164627 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 27102049129 in words is "twenty-seven billion, one hundred two million, forty-nine thousand, one hundred twenty-nine".