28057403852 has 24 divisors (see below), whose sum is σ = 52426784256. Its totient is φ = 13106692368.

The previous prime is 28057403839. The next prime is 28057403879. The reversal of 28057403852 is 25830475082.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3542228 + ... + 3550139.

It is an arithmetic number, because the mean of its divisors is an integer number (2184449344).

Almost surely, 2^28057403852 is an apocalyptic number.

It is an amenable number.

28057403852 is a deficient number, since it is larger than the sum of its proper divisors (24369380404).

28057403852 is a wasteful number, since it uses less digits than its factorization.

28057403852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7092437 (or 7092435 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 44.

The spelling of 28057403852 in words is "twenty-eight billion, fifty-seven million, four hundred three thousand, eight hundred fifty-two".