28265884044 has 24 divisors (see below), whose sum is σ = 67736263728. Its totient is φ = 9167313600.

The previous prime is 28265884019. The next prime is 28265884091. The reversal of 28265884044 is 44048856282.

It is a super-3 number, since 3×28265884044³ (a number of 32 digits) contains 333 as substring.

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, 31830507 + ... + 31831394.

It is an arithmetic number, because the mean of its divisors is an integer number (2822344322).

Almost surely, 2^28265884044 is an apocalyptic number.

It is an amenable number.

28265884044 is an abundant number, since it is smaller than the sum of its proper divisors (39470379684).

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

28265884044 is a wasteful number, since it uses less digits than its factorization.

28265884044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63661945 (or 63661943 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 51.

The spelling of 28265884044 in words is "twenty-eight billion, two hundred sixty-five million, eight hundred eighty-four thousand, forty-four".