27139733377 has 4 divisors (see below), whose sum is σ = 27175872256. Its totient is φ = 27103594500.

The previous prime is 27139733353. The next prime is 27139733381. The reversal of 27139733377 is 77333793172.

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 27139733377 - 2¹¹ = 27139731329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27139733977) 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, 18068313 + ... + 18069814.

It is an arithmetic number, because the mean of its divisors is an integer number (6793968064).

Almost surely, 2^27139733377 is an apocalyptic number.

It is an amenable number.

27139733377 is a deficient number, since it is larger than the sum of its proper divisors (36138879).

27139733377 is an equidigital number, since it uses as much as digits as its factorization.

27139733377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36138878.

The product of its digits is 3500658, while the sum is 52.

The spelling of 27139733377 in words is "twenty-seven billion, one hundred thirty-nine million, seven hundred thirty-three thousand, three hundred seventy-seven".