28266843051264 has 144 divisors (see below), whose sum is σ = 75392670551744. Its totient is φ = 9402056294400.

The previous prime is 28266843051259. The next prime is 28266843051287. The reversal of 28266843051264 is 46215034866282.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743630019 + ... + 743668029.

Almost surely, 2^{28266843051264} is an apocalyptic number.

28266843051264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28266843051264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37696335275872).

28266843051264 is an abundant number, since it is smaller than the sum of its proper divisors (47125827500480).

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

28266843051264 is a wasteful number, since it uses less digits than its factorization.

28266843051264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40084 (or 40070 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 57.

The spelling of 28266843051264 in words is "twenty-eight trillion, two hundred sixty-six billion, eight hundred forty-three million, fifty-one thousand, two hundred sixty-four".