27428880961548 has 36 divisors (see below), whose sum is σ = 75637217198088. Its totient is φ = 8311782109440.

The previous prime is 27428880961519. The next prime is 27428880961619. The reversal of 27428880961548 is 84516908882472.

27428880961548 is a `hidden beast` number, since 2 + 74 + 2 + 8 + 8 + 8 + 0 + 9 + 6 + 1 + 548 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34632425061 + ... + 34632425852.

It is an arithmetic number, because the mean of its divisors is an integer number (2101033811058).

Almost surely, 2^{27428880961548} is an apocalyptic number.

It is an amenable number.

27428880961548 is an abundant number, since it is smaller than the sum of its proper divisors (48208336236540).

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

27428880961548 is a wasteful number, since it uses less digits than its factorization.

27428880961548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69264850934 (or 69264850929 counting only the distinct ones).

The product of its (nonzero) digits is 495452160, while the sum is 72.

The spelling of 27428880961548 in words is "twenty-seven trillion, four hundred twenty-eight billion, eight hundred eighty million, nine hundred sixty-one thousand, five hundred forty-eight".