28260824884 has 24 divisors (see below), whose sum is σ = 52084074560. Its totient is φ = 13380365376.

The previous prime is 28260824881. The next prime is 28260824899. The reversal of 28260824884 is 48842806282.

It is a super-2 number, since 2×28260824884² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28260824881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75409 + ... + 249415.

Almost surely, 2^28260824884 is an apocalyptic number.

It is an amenable number.

28260824884 is a deficient number, since it is larger than the sum of its proper divisors (23823249676).

28260824884 is a wasteful number, since it uses less digits than its factorization.

28260824884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176167 (or 176165 counting only the distinct ones).

The product of its (nonzero) digits is 3145728, while the sum is 52.

The spelling of 28260824884 in words is "twenty-eight billion, two hundred sixty million, eight hundred twenty-four thousand, eight hundred eighty-four".