28872706170 has 256 divisors, whose sum is σ = 89204281344. Its totient is φ = 5806080000.

The previous prime is 28872706157. The next prime is 28872706183. The reversal of 28872706170 is 7160727882.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28872706157) and next prime (28872706183).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18033370 + ... + 18034970.

It is an arithmetic number, because the mean of its divisors is an integer number (348454224).

Almost surely, 2^28872706170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28872706170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44602140672).

28872706170 is an abundant number, since it is smaller than the sum of its proper divisors (60331575174).

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

28872706170 is a wasteful number, since it uses less digits than its factorization.

28872706170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877.

The product of its (nonzero) digits is 526848, while the sum is 48.

The spelling of 28872706170 in words is "twenty-eight billion, eight hundred seventy-two million, seven hundred six thousand, one hundred seventy".