28485201456 has 30 divisors (see below), whose sum is σ = 79719001700. Its totient is φ = 9495067104.

The previous prime is 28485201439. The next prime is 28485201457. The reversal of 28485201456 is 65410258482.

28485201456 is a `hidden beast` number, since 2 + 8 + 485 + 20 + 145 + 6 = 666.

It is a super-2 number, since 2×28485201456² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28485201457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98906806 + ... + 98907093.

Almost surely, 2^28485201456 is an apocalyptic number.

It is an amenable number.

28485201456 is an abundant number, since it is smaller than the sum of its proper divisors (51233800244).

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

28485201456 is a wasteful number, since it uses less digits than its factorization.

28485201456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197813913 (or 197813904 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 28485201456 in words is "twenty-eight billion, four hundred eighty-five million, two hundred one thousand, four hundred fifty-six".