27779171270349 has 8 divisors (see below), whose sum is σ = 37039081872832. Its totient is φ = 18519354090720.

The previous prime is 27779171270341. The next prime is 27779171270351. The reversal of 27779171270349 is 94307217197772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27779171270349 - 2³ = 27779171270341 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 27779171270349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27779171270341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22658929 + ... + 23853414.

It is an arithmetic number, because the mean of its divisors is an integer number (4629885234104).

Almost surely, 2^{27779171270349} is an apocalyptic number.

It is an amenable number.

27779171270349 is a deficient number, since it is larger than the sum of its proper divisors (9259910602483).

27779171270349 is a wasteful number, since it uses less digits than its factorization.

27779171270349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46711427.

The product of its (nonzero) digits is 65345616, while the sum is 66.

The spelling of 27779171270349 in words is "twenty-seven trillion, seven hundred seventy-nine billion, one hundred seventy-one million, two hundred seventy thousand, three hundred forty-nine".