28550541226452 has 192 divisors, whose sum is σ = 80728723353600. Its totient is φ = 7666472024064.

The previous prime is 28550541226433. The next prime is 28550541226463. The reversal of 28550541226452 is 25462214505582.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 28550541226395 and 28550541226404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3330281638 + ... + 3330290210.

It is an arithmetic number, because the mean of its divisors is an integer number (420462100800).

Almost surely, 2^{28550541226452} 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 28550541226452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40364361676800).

28550541226452 is an abundant number, since it is smaller than the sum of its proper divisors (52178182127148).

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

28550541226452 is a wasteful number, since it uses less digits than its factorization.

28550541226452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11670 (or 11668 counting only the distinct ones).

The product of its (nonzero) digits is 7680000, while the sum is 51.

The spelling of 28550541226452 in words is "twenty-eight trillion, five hundred fifty billion, five hundred forty-one million, two hundred twenty-six thousand, four hundred fifty-two".