27038115779 has 4 divisors (see below), whose sum is σ = 27038450184. Its totient is φ = 27037781376.

The previous prime is 27038115743. The next prime is 27038115781. The reversal of 27038115779 is 97751183072.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27038115779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27038115179) 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 3 ways as a sum of consecutive naturals, for example, 38144 + ... + 235650.

It is an arithmetic number, because the mean of its divisors is an integer number (6759612546).

Almost surely, 2^27038115779 is an apocalyptic number.

27038115779 is a deficient number, since it is larger than the sum of its proper divisors (334405).

27038115779 is a wasteful number, since it uses less digits than its factorization.

27038115779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334404.

The product of its (nonzero) digits is 740880, while the sum is 50.

The spelling of 27038115779 in words is "twenty-seven billion, thirty-eight million, one hundred fifteen thousand, seven hundred seventy-nine".