28881347347 has 8 divisors (see below), whose sum is σ = 30420486800. Its totient is φ = 27344114784.

The previous prime is 28881347333. The next prime is 28881347359. The reversal of 28881347347 is 74374318882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-28881347347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28881347317) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 445572 + ... + 506257.

It is an arithmetic number, because the mean of its divisors is an integer number (3802560850).

Almost surely, 2^28881347347 is an apocalyptic number.

28881347347 is a deficient number, since it is larger than the sum of its proper divisors (1539139453).

28881347347 is a wasteful number, since it uses less digits than its factorization.

28881347347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953445.

The product of its digits is 7225344, while the sum is 55.

The spelling of 28881347347 in words is "twenty-eight billion, eight hundred eighty-one million, three hundred forty-seven thousand, three hundred forty-seven".