28545460400 has 30 divisors (see below), whose sum is σ = 68580469572. Its totient is φ = 11418184000.

The previous prime is 28545460337. The next prime is 28545460403. The reversal of 28545460400 is 406454582.

It is not an unprimeable number, because it can be changed into a prime (28545460403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35681426 + ... + 35682225.

Almost surely, 2^28545460400 is an apocalyptic number.

28545460400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28545460400 is an abundant number, since it is smaller than the sum of its proper divisors (40035009172).

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

28545460400 is a wasteful number, since it uses less digits than its factorization.

28545460400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71363669 (or 71363658 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 28545460400 in words is "twenty-eight billion, five hundred forty-five million, four hundred sixty thousand, four hundred".