27228284536420 has 96 divisors (see below), whose sum is σ = 69522937787520. Its totient is φ = 8828309514240.

The previous prime is 27228284536399. The next prime is 27228284536447. The reversal of 27228284536420 is 2463548282272.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191515519 + ... + 191657638.

It is an arithmetic number, because the mean of its divisors is an integer number (724197268620).

Almost surely, 2^{27228284536420} is an apocalyptic number.

27228284536420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27228284536420 is an abundant number, since it is smaller than the sum of its proper divisors (42294653251100).

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

27228284536420 is a wasteful number, since it uses less digits than its factorization.

27228284536420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383173213 (or 383173211 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 55.

The spelling of 27228284536420 in words is "twenty-seven trillion, two hundred twenty-eight billion, two hundred eighty-four million, five hundred thirty-six thousand, four hundred twenty".