28881054147227 has 16 divisors (see below), whose sum is σ = 30409115712000. Its totient is φ = 27353794444704.

The previous prime is 28881054147137. The next prime is 28881054147229. The reversal of 28881054147227 is 72274145018882.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28881054147227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28881054147229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2072845553 + ... + 2072859485.

It is an arithmetic number, because the mean of its divisors is an integer number (1900569732000).

Almost surely, 2^{28881054147227} is an apocalyptic number.

28881054147227 is a deficient number, since it is larger than the sum of its proper divisors (1528061564773).

28881054147227 is a wasteful number, since it uses less digits than its factorization.

28881054147227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34850.

The product of its (nonzero) digits is 16056320, while the sum is 59.

The spelling of 28881054147227 in words is "twenty-eight trillion, eight hundred eighty-one billion, fifty-four million, one hundred forty-seven thousand, two hundred twenty-seven".