28856469570 has 32 divisors (see below), whose sum is σ = 70562238912. Its totient is φ = 7549868352.

The previous prime is 28856469563. The next prime is 28856469637. The reversal of 28856469570 is 7596465882.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9072772 + ... + 9075951.

It is an arithmetic number, because the mean of its divisors is an integer number (2205069966).

Almost surely, 2^28856469570 is an apocalyptic number.

28856469570 is an abundant number, since it is smaller than the sum of its proper divisors (41705769342).

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

28856469570 is a wasteful number, since it uses less digits than its factorization.

28856469570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18148786.

The product of its (nonzero) digits is 29030400, while the sum is 60.

The spelling of 28856469570 in words is "twenty-eight billion, eight hundred fifty-six million, four hundred sixty-nine thousand, five hundred seventy".