28453805664 has 48 divisors (see below), whose sum is σ = 74748199680. Its totient is φ = 9477368960.

The previous prime is 28453805657. The next prime is 28453805707. The reversal of 28453805664 is 46650835482.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14269 + ... + 238979.

It is an arithmetic number, because the mean of its divisors is an integer number (1557254160).

Almost surely, 2^28453805664 is an apocalyptic number.

28453805664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28453805664 is an abundant number, since it is smaller than the sum of its proper divisors (46294394016).

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

28453805664 is a wasteful number, since it uses less digits than its factorization.

28453805664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226043 (or 226035 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 51.

The spelling of 28453805664 in words is "twenty-eight billion, four hundred fifty-three million, eight hundred five thousand, six hundred sixty-four".