28566465400 has 48 divisors (see below), whose sum is σ = 72454949640. Its totient is φ = 10387804800.

The previous prime is 28566465383. The next prime is 28566465463. The reversal of 28566465400 is 456466582.

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 11 ways as a sum of consecutive naturals, for example, 6490179 + ... + 6494578.

Almost surely, 2^28566465400 is an apocalyptic number.

28566465400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28566465400 is an abundant number, since it is smaller than the sum of its proper divisors (43888484240).

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

28566465400 is a wasteful number, since it uses less digits than its factorization.

28566465400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12984784 (or 12984775 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 46.

The spelling of 28566465400 in words is "twenty-eight billion, five hundred sixty-six million, four hundred sixty-five thousand, four hundred".