27100108129 has 4 divisors (see below), whose sum is σ = 27200108800. Its totient is φ = 27000107460.

The previous prime is 27100108103. The next prime is 27100108151. The reversal of 27100108129 is 92180100172.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27100108129 - 2¹¹ = 27100106081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27100108129.

It is not an unprimeable number, because it can be changed into a prime (27100108169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49999929 + ... + 50000470.

It is an arithmetic number, because the mean of its divisors is an integer number (6800027200).

Almost surely, 2^27100108129 is an apocalyptic number.

It is an amenable number.

27100108129 is a deficient number, since it is larger than the sum of its proper divisors (100000671).

27100108129 is a wasteful number, since it uses less digits than its factorization.

27100108129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100000670.

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 27100108129 in words is "twenty-seven billion, one hundred million, one hundred eight thousand, one hundred twenty-nine".