27795727280 has 20 divisors (see below), whose sum is σ = 64625066112. Its totient is φ = 11118290880.

The previous prime is 27795727273. The next prime is 27795727303. The reversal of 27795727280 is 8272759772.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173723216 + ... + 173723375.

Almost surely, 2^27795727280 is an apocalyptic number.

27795727280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27795727280 is an abundant number, since it is smaller than the sum of its proper divisors (36829338832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27795727280 is a wasteful number, since it uses less digits than its factorization.

27795727280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347446604 (or 347446598 counting only the distinct ones).

The product of its (nonzero) digits is 6914880, while the sum is 56.

The spelling of 27795727280 in words is "twenty-seven billion, seven hundred ninety-five million, seven hundred twenty-seven thousand, two hundred eighty".