28055866330 has 16 divisors (see below), whose sum is σ = 50672921544. Its totient is φ = 11184043840.

The previous prime is 28055866313. The next prime is 28055866331. The reversal of 28055866330 is 3366855082.

It can be written as a sum of positive squares in 4 ways, for example, as 27453507481 + 602358849 = 165691^2 + 24543^2 .

It is not an unprimeable number, because it can be changed into a prime (28055866331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4784761 + ... + 4790620.

Almost surely, 2^28055866330 is an apocalyptic number.

28055866330 is a deficient number, since it is larger than the sum of its proper divisors (22617055214).

28055866330 is a wasteful number, since it uses less digits than its factorization.

28055866330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9575681.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 28055866330 in words is "twenty-eight billion, fifty-five million, eight hundred sixty-six thousand, three hundred thirty".