28225030808442 has 24 divisors (see below), whose sum is σ = 61126398084384. Its totient is φ = 8684624863824.

The previous prime is 28225030808417. The next prime is 28225030808461. The reversal of 28225030808442 is 24480803052282.

It is a junction number, because it is equal to n+sod(n) for n = 28225030808391 and 28225030808400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13917667038 + ... + 13917669065.

It is an arithmetic number, because the mean of its divisors is an integer number (2546933253516).

Almost surely, 2^{28225030808442} is an apocalyptic number.

28225030808442 is an abundant number, since it is smaller than the sum of its proper divisors (32901367275942).

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

28225030808442 is a wasteful number, since it uses less digits than its factorization.

28225030808442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27835336134 (or 27835336121 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 48.

The spelling of 28225030808442 in words is "twenty-eight trillion, two hundred twenty-five billion, thirty million, eight hundred eight thousand, four hundred forty-two".