28266901080544 has 36 divisors (see below), whose sum is σ = 64736251138944. Its totient is φ = 12114386176704.

The previous prime is 28266901080511. The next prime is 28266901080571. The reversal of 28266901080544 is 44508010966282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9013678624 + ... + 9013681759.

It is an arithmetic number, because the mean of its divisors is an integer number (1798229198304).

Almost surely, 2^{28266901080544} is an apocalyptic number.

It is an amenable number.

28266901080544 is an abundant number, since it is smaller than the sum of its proper divisors (36469350058400).

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

28266901080544 is a wasteful number, since it uses less digits than its factorization.

28266901080544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18027360407 (or 18027360392 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 55.

The spelling of 28266901080544 in words is "twenty-eight trillion, two hundred sixty-six billion, nine hundred one million, eighty thousand, five hundred forty-four".