28900680004 has 27 divisors (see below), whose sum is σ = 58838372607. Its totient is φ = 12384985704.

The previous prime is 28900679963. The next prime is 28900680019. The reversal of 28900680004 is 40008600982.

The square root of 28900680004 is 170002.

It is a perfect power (a square), and thus also a powerful number.

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 8 ways as a sum of consecutive naturals, for example, 2373957 + ... + 2386099.

Almost surely, 2^28900680004 is an apocalyptic number.

28900680004 is the 170002-nd square number.

It is an amenable number.

28900680004 is an abundant number, since it is smaller than the sum of its proper divisors (29937692603).

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

28900680004 is an frugal number, since it uses more digits than its factorization.

28900680004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24304 (or 12152 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 28900680004 in words is "twenty-eight billion, nine hundred million, six hundred eighty thousand, four".