28083381074 has 36 divisors (see below), whose sum is σ = 50227266042. Its totient is φ = 11742111360.

The previous prime is 28083381049. The next prime is 28083381097. The reversal of 28083381074 is 47018338082.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 18348598849 + 9734782225 = 135457^2 + 98665^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 79502 + ... + 249974.

Almost surely, 2^28083381074 is an apocalyptic number.

28083381074 is a deficient number, since it is larger than the sum of its proper divisors (22143884968).

28083381074 is a wasteful number, since it uses less digits than its factorization.

28083381074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170571 (or 170523 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 28083381074 in words is "twenty-eight billion, eighty-three million, three hundred eighty-one thousand, seventy-four".