28060654680 has 96 divisors (see below), whose sum is σ = 91460350800. Its totient is φ = 7461243648.

The previous prime is 28060654571. The next prime is 28060654681. The reversal of 28060654680 is 8645606082.

28060654680 is a `hidden beast` number, since 28 + 0 + 6 + 0 + 6 + 546 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28060654681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12606 + ... + 237234.

Almost surely, 2^28060654680 is an apocalyptic number.

28060654680 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 28060654680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45730175400).

28060654680 is an abundant number, since it is smaller than the sum of its proper divisors (63399696120).

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

28060654680 is a wasteful number, since it uses less digits than its factorization.

28060654680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224993 (or 224986 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 28060654680 in words is "twenty-eight billion, sixty million, six hundred fifty-four thousand, six hundred eighty".