28857630002 has 16 divisors (see below), whose sum is σ = 44462387160. Its totient is φ = 14036940288.

The previous prime is 28857629993. The next prime is 28857630019. The reversal of 28857630002 is 20003675882.

It can be written as a sum of positive squares in 4 ways, for example, as 28194103921 + 663526081 = 167911^2 + 25759^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631874 + ... + 676002.

Almost surely, 2^28857630002 is an apocalyptic number.

28857630002 is a deficient number, since it is larger than the sum of its proper divisors (15604757158).

28857630002 is a wasteful number, since it uses less digits than its factorization.

28857630002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53005.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 28857630002 in words is "twenty-eight billion, eight hundred fifty-seven million, six hundred thirty thousand, two".