27755005280 has 48 divisors (see below), whose sum is σ = 68422130784. Its totient is φ = 10619304960.

The previous prime is 27755005279. The next prime is 27755005357. The reversal of 27755005280 is 8250055772.

It is a congruent number.

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, 3767381 + ... + 3774740.

It is an arithmetic number, because the mean of its divisors is an integer number (1425461058).

Almost surely, 2^27755005280 is an apocalyptic number.

27755005280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27755005280 is an abundant number, since it is smaller than the sum of its proper divisors (40667125504).

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

27755005280 is a wasteful number, since it uses less digits than its factorization.

27755005280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7542159 (or 7542151 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 41.

The spelling of 27755005280 in words is "twenty-seven billion, seven hundred fifty-five million, five thousand, two hundred eighty".