5649656832 has 132 divisors (see below), whose sum is σ = 16392376000. Its totient is φ = 1874092032.

The previous prime is 5649656813. The next prime is 5649656833. The reversal of 5649656832 is 2386569465.

5649656832 is a `hidden beast` number, since 5 + 6 + 49 + 6 + 568 + 32 = 666.

It is not an unprimeable number, because it can be changed into a prime (5649656833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2053794 + ... + 2056542.

Almost surely, 2^5649656832 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 5649656832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8196188000).

5649656832 is an abundant number, since it is smaller than the sum of its proper divisors (10742719168).

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

5649656832 is a wasteful number, since it uses less digits than its factorization.

5649656832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998 (or 2977 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 54.

The square root of 5649656832 is about 75164.1991376214. The cubic root of 5649656832 is about 1781.0414340768.

The spelling of 5649656832 in words is "five billion, six hundred forty-nine million, six hundred fifty-six thousand, eight hundred thirty-two".