28278333030050 has 24 divisors (see below), whose sum is σ = 52611789710676. Its totient is φ = 11308303045440.

The previous prime is 28278333029993. The next prime is 28278333030091. The reversal of 28278333030050 is 5003033387282.

It can be written as a sum of positive squares in 6 ways, for example, as 18965075621881 + 9313257408169 = 4354891^2 + 3051763^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28278333029983 and 28278333030010.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75565649 + ... + 75938948.

Almost surely, 2^{28278333030050} is an apocalyptic number.

28278333030050 is a deficient number, since it is larger than the sum of its proper divisors (24333456680626).

28278333030050 is a wasteful number, since it uses less digits than its factorization.

28278333030050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151508342 (or 151508337 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 28278333030050 in words is "twenty-eight trillion, two hundred seventy-eight billion, three hundred thirty-three million, thirty thousand, fifty".