27928644353 has 8 divisors (see below), whose sum is σ = 28274684256. Its totient is φ = 27582832000.

The previous prime is 27928644349. The next prime is 27928644371. The reversal of 27928644353 is 35344682972.

It is a happy number.

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 27928644353 - 2² = 27928644349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27928644295 and 27928644304.

It is not an unprimeable number, because it can be changed into a prime (27928644323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197078 + ... + 307728.

It is an arithmetic number, because the mean of its divisors is an integer number (3534335532).

Almost surely, 2^27928644353 is an apocalyptic number.

It is an amenable number.

27928644353 is a deficient number, since it is larger than the sum of its proper divisors (346039903).

27928644353 is a wasteful number, since it uses less digits than its factorization.

27928644353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113775.

The product of its digits is 8709120, while the sum is 53.

The spelling of 27928644353 in words is "twenty-seven billion, nine hundred twenty-eight million, six hundred forty-four thousand, three hundred fifty-three".