28477430827776 has 360 divisors, whose sum is σ = 100175701412864. Its totient is φ = 7873942763520.

The previous prime is 28477430827711. The next prime is 28477430827787. The reversal of 28477430827776 is 67772803477482.

28477430827776 is a `hidden beast` number, since 2 + 8 + 47 + 7 + 4 + 308 + 277 + 7 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1335351 + ... + 7664073.

Almost surely, 2^{28477430827776} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28477430827776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50087850706432).

28477430827776 is an abundant number, since it is smaller than the sum of its proper divisors (71698270585088).

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

28477430827776 is an equidigital number, since it uses as much as digits as its factorization.

28477430827776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6328789 (or 6328766 counting only the distinct ones).

The product of its (nonzero) digits is 1239146496, while the sum is 72.

The spelling of 28477430827776 in words is "twenty-eight trillion, four hundred seventy-seven billion, four hundred thirty million, eight hundred twenty-seven thousand, seven hundred seventy-six".