5634421664 has 48 divisors (see below), whose sum is σ = 11392617600. Its totient is φ = 2741735424.

The previous prime is 5634421657. The next prime is 5634421691. The reversal of 5634421664 is 4661244365.

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, 258752 + ... + 279680.

It is an arithmetic number, because the mean of its divisors is an integer number (237346200).

Almost surely, 2^5634421664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5634421664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5696308800).

5634421664 is an abundant number, since it is smaller than the sum of its proper divisors (5758195936).

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

5634421664 is a wasteful number, since it uses less digits than its factorization.

5634421664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21165 (or 21157 counting only the distinct ones).

The product of its digits is 414720, while the sum is 41.

The square root of 5634421664 is about 75062.7848137811. The cubic root of 5634421664 is about 1779.4390421894.

The spelling of 5634421664 in words is "five billion, six hundred thirty-four million, four hundred twenty-one thousand, six hundred sixty-four".