5649199920 has 480 divisors, whose sum is σ = 23545826304. Its totient is φ = 1181952000.

The previous prime is 5649199879. The next prime is 5649199931. The reversal of 5649199920 is 299919465.

It is a super-2 number, since 2×5649199920² = 63826919472256012800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9893235 + ... + 9893805.

Almost surely, 2^5649199920 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 5649199920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11772913152).

5649199920 is an abundant number, since it is smaller than the sum of its proper divisors (17896626384).

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

5649199920 is a wasteful number, since it uses less digits than its factorization.

5649199920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 54.

The square root of 5649199920 is about 75161.1596504471. The cubic root of 5649199920 is about 1780.9934192937.

The spelling of 5649199920 in words is "five billion, six hundred forty-nine million, one hundred ninety-nine thousand, nine hundred twenty".