27755800680 has 32 divisors (see below), whose sum is σ = 83267402400. Its totient is φ = 7401546816.

The previous prime is 27755800673. The next prime is 27755800693. The reversal of 27755800680 is 8600855772.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115649050 + ... + 115649289.

It is an arithmetic number, because the mean of its divisors is an integer number (2602106325).

Almost surely, 2^27755800680 is an apocalyptic number.

27755800680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27755800680 is an abundant number, since it is smaller than the sum of its proper divisors (55511601720).

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

27755800680 is a wasteful number, since it uses less digits than its factorization.

27755800680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231298353 (or 231298349 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 27755800680 in words is "twenty-seven billion, seven hundred fifty-five million, eight hundred thousand, six hundred eighty".