27573551216428 has 12 divisors (see below), whose sum is σ = 55147102432912. Its totient is φ = 11817236235600.

The previous prime is 27573551216417. The next prime is 27573551216501. The reversal of 27573551216428 is 82461215537572.

27573551216428 is an admirable number.

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, 492384843123 + ... + 492384843178.

Almost surely, 2^{27573551216428} is an apocalyptic number.

27573551216428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27573551216428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27573551216428 is a wasteful number, since it uses less digits than its factorization.

27573551216428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984769686312 (or 984769686310 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 58.

The spelling of 27573551216428 in words is "twenty-seven trillion, five hundred seventy-three billion, five hundred fifty-one million, two hundred sixteen thousand, four hundred twenty-eight".