28369769005056 has 544 divisors, whose sum is σ = 78661725880320. Its totient is φ = 9090839347200.

The previous prime is 28369769005031. The next prime is 28369769005073. The reversal of 28369769005056 is 65050096796382.

It is a happy number.

It is a super-2 number, since 2×28369769005056² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148532821921 + ... + 148532822111.

Almost surely, 2^{28369769005056} 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 28369769005056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39330862940160).

28369769005056 is an abundant number, since it is smaller than the sum of its proper divisors (50291956875264).

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

28369769005056 is an equidigital number, since it uses as much as digits as its factorization.

28369769005056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 146966400, while the sum is 66.

The spelling of 28369769005056 in words is "twenty-eight trillion, three hundred sixty-nine billion, seven hundred sixty-nine million, five thousand, fifty-six".