27728604355 has 8 divisors (see below), whose sum is σ = 33838297200. Its totient is φ = 21806902176.

The previous prime is 27728604221. The next prime is 27728604361. The reversal of 27728604355 is 55340682772.

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 27728604355 - 2⁹ = 27728603843 is a prime.

It is a super-2 number, since 2×27728604355² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27728604299 and 27728604308.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 46997340 + ... + 46997929.

It is an arithmetic number, because the mean of its divisors is an integer number (4229787150).

Almost surely, 2^27728604355 is an apocalyptic number.

27728604355 is a deficient number, since it is larger than the sum of its proper divisors (6109692845).

27728604355 is an equidigital number, since it uses as much as digits as its factorization.

27728604355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93995333.

The product of its (nonzero) digits is 2822400, while the sum is 49.

The spelling of 27728604355 in words is "twenty-seven billion, seven hundred twenty-eight million, six hundred four thousand, three hundred fifty-five".