28033280778106 has 16 divisors (see below), whose sum is σ = 42890552344224. Its totient is φ = 13737013162704.

The previous prime is 28033280778073. The next prime is 28033280778133. The reversal of 28033280778106 is 60187708233082.

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, 145694880 + ... + 145887163.

It is an arithmetic number, because the mean of its divisors is an integer number (2680659521514).

Almost surely, 2^{28033280778106} is an apocalyptic number.

28033280778106 is a deficient number, since it is larger than the sum of its proper divisors (14857271566118).

28033280778106 is a wasteful number, since it uses less digits than its factorization.

28033280778106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291583005.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 28033280778106 in words is "twenty-eight trillion, thirty-three billion, two hundred eighty million, seven hundred seventy-eight thousand, one hundred six".