28285159336530 has 64 divisors (see below), whose sum is σ = 68077937030400. Its totient is φ = 7521205847040.

The previous prime is 28285159336513. The next prime is 28285159336571. The reversal of 28285159336530 is 3563395158282.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182161566 + ... + 182316774.

It is an arithmetic number, because the mean of its divisors is an integer number (1063717766100).

Almost surely, 2^{28285159336530} is an apocalyptic number.

28285159336530 is an abundant number, since it is smaller than the sum of its proper divisors (39792777693870).

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

28285159336530 is a wasteful number, since it uses less digits than its factorization.

28285159336530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172499.

The product of its (nonzero) digits is 46656000, while the sum is 60.

The spelling of 28285159336530 in words is "twenty-eight trillion, two hundred eighty-five billion, one hundred fifty-nine million, three hundred thirty-six thousand, five hundred thirty".