5613649920 has 448 divisors, whose sum is σ = 20629369440. Its totient is φ = 1465122816.

The previous prime is 5613649913. The next prime is 5613649999. The reversal of 5613649920 is 299463165.

5613649920 is a `hidden beast` number, since 5 + 6 + 136 + 499 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 119439337 + ... + 119439383.

Almost surely, 2^5613649920 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 5613649920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10314684720).

5613649920 is an abundant number, since it is smaller than the sum of its proper divisors (15015719520).

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

5613649920 is an frugal number, since it uses more digits than its factorization.

5613649920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 5613649920 is about 74924.2945912739. The cubic root of 5613649920 is about 1777.2496683197.

The spelling of 5613649920 in words is "five billion, six hundred thirteen million, six hundred forty-nine thousand, nine hundred twenty".