225628028976 has 160 divisors (see below), whose sum is σ = 676099726848. Its totient is φ = 63508008960.

The previous prime is 225628028963. The next prime is 225628028993. The reversal of 225628028976 is 679820826522.

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, 6489976 + ... + 6524648.

Almost surely, 2^225628028976 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 225628028976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338049863424).

225628028976 is an abundant number, since it is smaller than the sum of its proper divisors (450471697872).

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

225628028976 is a wasteful number, since it uses less digits than its factorization.

225628028976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34979 (or 34973 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 225628028976 in words is "two hundred twenty-five billion, six hundred twenty-eight million, twenty-eight thousand, nine hundred seventy-six".