27330139479 has 4 divisors (see below), whose sum is σ = 36440185976. Its totient is φ = 18220092984.

The previous prime is 27330139439. The next prime is 27330139481. The reversal of 27330139479 is 97493103372.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 27330139479 - 2²⁰ = 27329090903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27330139409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4555023244 + ... + 4555023249.

It is an arithmetic number, because the mean of its divisors is an integer number (9110046494).

Almost surely, 2^27330139479 is an apocalyptic number.

27330139479 is a deficient number, since it is larger than the sum of its proper divisors (9110046497).

27330139479 is an equidigital number, since it uses as much as digits as its factorization.

27330139479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9110046496.

The product of its (nonzero) digits is 857304, while the sum is 48.

The spelling of 27330139479 in words is "twenty-seven billion, three hundred thirty million, one hundred thirty-nine thousand, four hundred seventy-nine".