28351866207060 has 576 divisors, whose sum is σ = 100156576020480. Its totient is φ = 6646443724800.

The previous prime is 28351866207011. The next prime is 28351866207083. The reversal of 28351866207060 is 6070266815382.

28351866207060 is a `hidden beast` number, since 2 + 8 + 3 + 5 + 1 + 8 + 6 + 620 + 7 + 0 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 28351866206988 and 28351866207006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3145659114 + ... + 3145668126.

It is an arithmetic number, because the mean of its divisors is an integer number (173882944480).

Almost surely, 2^{28351866207060} is an apocalyptic number.

28351866207060 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 28351866207060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50078288010240).

28351866207060 is an abundant number, since it is smaller than the sum of its proper divisors (71804709813420).

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

28351866207060 is a wasteful number, since it uses less digits than its factorization.

28351866207060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10637 (or 10618 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 28351866207060 in words is "twenty-eight trillion, three hundred fifty-one billion, eight hundred sixty-six million, two hundred seven thousand, sixty".