28870471504 has 60 divisors (see below), whose sum is σ = 65114769888. Its totient is φ = 12364363200.

The previous prime is 28870471501. The next prime is 28870471507. The reversal of 28870471504 is 40517407882.

It is an interprime number because it is at equal distance from previous prime (28870471501) and next prime (28870471507).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28870471501) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1172439 + ... + 1196809.

Almost surely, 2^28870471504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28870471504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32557384944).

28870471504 is an abundant number, since it is smaller than the sum of its proper divisors (36244298384).

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

28870471504 is a wasteful number, since it uses less digits than its factorization.

28870471504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25904 (or 25891 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 46.

The spelling of 28870471504 in words is "twenty-eight billion, eight hundred seventy million, four hundred seventy-one thousand, five hundred four".