5649023688 has 128 divisors (see below), whose sum is σ = 17664721920. Its totient is φ = 1462498560.

The previous prime is 5649023683. The next prime is 5649023689. The reversal of 5649023688 is 8863209465.

It is a super-2 number, since 2×5649023688² = 63822937255170242688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 5649023688.

It is not an unprimeable number, because it can be changed into a prime (5649023683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 580995 + ... + 590637.

It is an arithmetic number, because the mean of its divisors is an integer number (138005640).

Almost surely, 2^5649023688 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 5649023688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8832360960).

5649023688 is an abundant number, since it is smaller than the sum of its proper divisors (12015698232).

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

5649023688 is a wasteful number, since it uses less digits than its factorization.

5649023688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9987 (or 9983 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 51.

The square root of 5649023688 is about 75159.9872804673. The cubic root of 5649023688 is about 1780.9748991905.

The spelling of 5649023688 in words is "five billion, six hundred forty-nine million, twenty-three thousand, six hundred eighty-eight".