28202246044428 has 24 divisors (see below), whose sum is σ = 65806425216000. Its totient is φ = 9400579474960.

The previous prime is 28202246044393. The next prime is 28202246044447. The reversal of 28202246044428 is 82444064220282.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20455428 + ... + 21790571.

It is an arithmetic number, because the mean of its divisors is an integer number (2741934384000).

Almost surely, 2^{28202246044428} is an apocalyptic number.

It is an amenable number.

28202246044428 is an abundant number, since it is smaller than the sum of its proper divisors (37604179171572).

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

28202246044428 is a wasteful number, since it uses less digits than its factorization.

28202246044428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42301637 (or 42301635 counting only the distinct ones).

The product of its (nonzero) digits is 3145728, while the sum is 48.

The spelling of 28202246044428 in words is "twenty-eight trillion, two hundred two billion, two hundred forty-six million, forty-four thousand, four hundred twenty-eight".