28103680000 has 280 divisors, whose sum is σ = 76770738000. Its totient is φ = 10199040000.

The previous prime is 28103679973. The next prime is 28103680001. The reversal of 28103680000 is 8630182.

It is not an unprimeable number, because it can be changed into a prime (28103680001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 56319751 + ... + 56320249.

Almost surely, 2^28103680000 is an apocalyptic number.

28103680000 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 28103680000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38385369000).

28103680000 is an abundant number, since it is smaller than the sum of its proper divisors (48667058000).

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

28103680000 is an frugal number, since it uses more digits than its factorization.

28103680000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 28103680000 in words is "twenty-eight billion, one hundred three million, six hundred eighty thousand".