27728588851 has 8 divisors (see below), whose sum is σ = 27767901600. Its totient is φ = 27689303040.

The previous prime is 27728588821. The next prime is 27728588857. The reversal of 27728588851 is 15888582772.

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 27728588851 - 2¹⁹ = 27728064563 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 27728588851.

It is not an unprimeable number, because it can be changed into a prime (27728588857) 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, 2848170 + ... + 2857888.

It is an arithmetic number, because the mean of its divisors is an integer number (3470987700).

Almost surely, 2^27728588851 is an apocalyptic number.

27728588851 is a deficient number, since it is larger than the sum of its proper divisors (39312749).

27728588851 is a wasteful number, since it uses less digits than its factorization.

27728588851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13469.

The product of its digits is 20070400, while the sum is 61.

The spelling of 27728588851 in words is "twenty-seven billion, seven hundred twenty-eight million, five hundred eighty-eight thousand, eight hundred fifty-one".