8481857408 has 32 divisors (see below), whose sum is σ = 16909560000. Its totient is φ = 4237889536.

The previous prime is 8481857387. The next prime is 8481857437. The reversal of 8481857408 is 8047581848.

It is a Cunningham number, because it is equal to 92097²-1.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 8481857408.

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 3 ways as a sum of consecutive naturals, for example, 161168 + ... + 207216.

It is an arithmetic number, because the mean of its divisors is an integer number (528423750).

Almost surely, 2^8481857408 is an apocalyptic number.

It is an amenable number.

8481857408 is a deficient number, since it is larger than the sum of its proper divisors (8427702592).

8481857408 is a wasteful number, since it uses less digits than its factorization.

8481857408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47502 (or 47490 counting only the distinct ones).

The product of its (nonzero) digits is 2293760, while the sum is 53.

The square root of 8481857408 is about 92096.9999945709. Note that the first 5 decimals coincide. The cubic root of 8481857408 is about 2039.3745205330.

The spelling of 8481857408 in words is "eight billion, four hundred eighty-one million, eight hundred fifty-seven thousand, four hundred eight".