5649617764 has 48 divisors (see below), whose sum is σ = 11647105792. Its totient is φ = 2347201152.

The previous prime is 5649617759. The next prime is 5649617767. The reversal of 5649617764 is 4677169465.

It is not an unprimeable number, because it can be changed into a prime (5649617767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277129 + ... + 296815.

Almost surely, 2^5649617764 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 5649617764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5823552896).

5649617764 is an abundant number, since it is smaller than the sum of its proper divisors (5997488028).

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

5649617764 is a wasteful number, since it uses less digits than its factorization.

5649617764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20012 (or 20010 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 55.

The square root of 5649617764 is about 75163.9392528093. The cubic root of 5649617764 is about 1781.0373287014.

The spelling of 5649617764 in words is "five billion, six hundred forty-nine million, six hundred seventeen thousand, seven hundred sixty-four".