28230774618 has 16 divisors (see below), whose sum is σ = 56463261120. Its totient is φ = 9409972896.

The previous prime is 28230774599. The next prime is 28230774629. The reversal of 28230774618 is 81647703282.

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, 265171 + ... + 356057.

It is an arithmetic number, because the mean of its divisors is an integer number (3528953820).

Almost surely, 2^28230774618 is an apocalyptic number.

28230774618 is an abundant number, since it is smaller than the sum of its proper divisors (28232486502).

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

28230774618 is a wasteful number, since it uses less digits than its factorization.

28230774618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142661.

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 28230774618 in words is "twenty-eight billion, two hundred thirty million, seven hundred seventy-four thousand, six hundred eighteen".