27728801575 has 24 divisors (see below), whose sum is σ = 36740349360. Its totient is φ = 20686579200.

The previous prime is 27728801549. The next prime is 27728801591. The reversal of 27728801575 is 57510882772.

It is not a de Polignac number, because 27728801575 - 2⁷ = 27728801447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252961 + ... + 345610.

It is an arithmetic number, because the mean of its divisors is an integer number (1530847890).

Almost surely, 2^27728801575 is an apocalyptic number.

27728801575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27728801575 is a deficient number, since it is larger than the sum of its proper divisors (9011547785).

27728801575 is a wasteful number, since it uses less digits than its factorization.

27728801575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598707 (or 598702 counting only the distinct ones).

The product of its (nonzero) digits is 2195200, while the sum is 52.

The spelling of 27728801575 in words is "twenty-seven billion, seven hundred twenty-eight million, eight hundred one thousand, five hundred seventy-five".