5653380644 has 6 divisors (see below), whose sum is σ = 9893416134. Its totient is φ = 2826690320.

The previous prime is 5653380643. The next prime is 5653380721. The reversal of 5653380644 is 4460833565.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2963713600 + 2689667044 = 54440^2 + 51862^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5653380595 and 5653380604.

It is not an unprimeable number, because it can be changed into a prime (5653380641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706672577 + ... + 706672584.

It is an arithmetic number, because the mean of its divisors is an integer number (1648902689).

Almost surely, 2^5653380644 is an apocalyptic number.

It is an amenable number.

5653380644 is a deficient number, since it is larger than the sum of its proper divisors (4240035490).

5653380644 is a wasteful number, since it uses less digits than its factorization.

5653380644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413345165 (or 1413345163 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

The square root of 5653380644 is about 75188.9662384050. The cubic root of 5653380644 is about 1781.4326558825.

The spelling of 5653380644 in words is "five billion, six hundred fifty-three million, three hundred eighty thousand, six hundred forty-four".