28384469056 has 28 divisors (see below), whose sum is σ = 59289929680. Its totient is φ = 13445274240.

The previous prime is 28384469021. The next prime is 28384469059. The reversal of 28384469056 is 65096448382.

It is a super-2 number, since 2×28384469056² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28384468988 and 28384469006.

It is not an unprimeable number, because it can be changed into a prime (28384469059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11670030 + ... + 11672461.

Almost surely, 2^28384469056 is an apocalyptic number.

It is an amenable number.

28384469056 is an abundant number, since it is smaller than the sum of its proper divisors (30905460624).

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

28384469056 is a wasteful number, since it uses less digits than its factorization.

28384469056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23342522 (or 23342512 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 55.

The spelling of 28384469056 in words is "twenty-eight billion, three hundred eighty-four million, four hundred sixty-nine thousand, fifty-six".