28156230960 has 320 divisors, whose sum is σ = 108578050560. Its totient is φ = 5929943040.

The previous prime is 28156230959. The next prime is 28156230979. The reversal of 28156230960 is 6903265182.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 559311 + ... + 607569.

It is an arithmetic number, because the mean of its divisors is an integer number (339306408).

Almost surely, 2^28156230960 is an apocalyptic number.

28156230960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28156230960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54289025280).

28156230960 is an abundant number, since it is smaller than the sum of its proper divisors (80421819600).

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

28156230960 is a wasteful number, since it uses less digits than its factorization.

28156230960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48316 (or 48310 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 28156230960 in words is "twenty-eight billion, one hundred fifty-six million, two hundred thirty thousand, nine hundred sixty".