27120518779 has 8 divisors (see below), whose sum is σ = 27217192608. Its totient is φ = 27023915520.

The previous prime is 27120518773. The next prime is 27120518797. The reversal of 27120518779 is 97781502172.

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

It is a cyclic number.

It is not a de Polignac number, because 27120518779 - 2³ = 27120518771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27120518771) 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, 822939 + ... + 855259.

It is an arithmetic number, because the mean of its divisors is an integer number (3402149076).

Almost surely, 2^27120518779 is an apocalyptic number.

27120518779 is a deficient number, since it is larger than the sum of its proper divisors (96673829).

27120518779 is a wasteful number, since it uses less digits than its factorization.

27120518779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35285.

The product of its (nonzero) digits is 493920, while the sum is 49.

The spelling of 27120518779 in words is "twenty-seven billion, one hundred twenty million, five hundred eighteen thousand, seven hundred seventy-nine".