28944911449418 has 16 divisors (see below), whose sum is σ = 44241420614760. Its totient is φ = 14197831217856.

The previous prime is 28944911449291. The next prime is 28944911449477. The reversal of 28944911449418 is 81494411944982.

It can be written as a sum of positive squares in 4 ways, for example, as 16428649113529 + 12516262335889 = 4053227^2 + 3537833^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14023205 + ... + 15954312.

Almost surely, 2^{28944911449418} is an apocalyptic number.

28944911449418 is a deficient number, since it is larger than the sum of its proper divisors (15296509165342).

28944911449418 is a wasteful number, since it uses less digits than its factorization.

28944911449418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29986681.

The product of its digits is 95551488, while the sum is 68.

The spelling of 28944911449418 in words is "twenty-eight trillion, nine hundred forty-four billion, nine hundred eleven million, four hundred forty-nine thousand, four hundred eighteen".