28480971000 has 128 divisors (see below), whose sum is σ = 91727400960. Its totient is φ = 7349904000.

The previous prime is 28480970981. The next prime is 28480971037. The reversal of 28480971000 is 17908482.

It is a super-2 number, since 2×28480971000² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28480971000.

It is a congruent 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, 60124 + ... + 246123.

It is an arithmetic number, because the mean of its divisors is an integer number (716620320).

Almost surely, 2^28480971000 is an apocalyptic number.

28480971000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28480971000 is an abundant number, since it is smaller than the sum of its proper divisors (63246429960).

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

28480971000 is a wasteful number, since it uses less digits than its factorization.

28480971000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306302 (or 306288 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 28480971000 in words is "twenty-eight billion, four hundred eighty million, nine hundred seventy-one thousand".