28645404000 has 96 divisors (see below), whose sum is σ = 93842382816. Its totient is φ = 7638771200.

The previous prime is 28645403987. The next prime is 28645404019. The reversal of 28645404000 is 40454682.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1181559 + ... + 1205558.

It is an arithmetic number, because the mean of its divisors is an integer number (977524821).

Almost surely, 2^28645404000 is an apocalyptic number.

28645404000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28645404000 is an abundant number, since it is smaller than the sum of its proper divisors (65196978816).

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

28645404000 is a wasteful number, since it uses less digits than its factorization.

28645404000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387145 (or 2387127 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 28645404000 its reverse (40454682), we get a palindrome (28685858682).

The spelling of 28645404000 in words is "twenty-eight billion, six hundred forty-five million, four hundred four thousand".