28061058618 has 24 divisors (see below), whose sum is σ = 63998906400. Its totient is φ = 8861386824.

The previous prime is 28061058611. The next prime is 28061058629. The reversal of 28061058618 is 81685016082.

28061058618 is a `hidden beast` number, since 2 + 8 + 0 + 61 + 0 + 586 + 1 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (28061058611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41024598 + ... + 41025281.

It is an arithmetic number, because the mean of its divisors is an integer number (2666621100).

Almost surely, 2^28061058618 is an apocalyptic number.

28061058618 is an abundant number, since it is smaller than the sum of its proper divisors (35937847782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28061058618 is a wasteful number, since it uses less digits than its factorization.

28061058618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82049906 (or 82049903 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 28061058618 in words is "twenty-eight billion, sixty-one million, fifty-eight thousand, six hundred eighteen".