5724378640 has 20 divisors (see below), whose sum is σ = 13309180524. Its totient is φ = 2289751424.

The previous prime is 5724378623. The next prime is 5724378641. The reversal of 5724378640 is 468734275.

It can be written as a sum of positive squares in 2 ways, for example, as 3233969424 + 2490409216 = 56868^2 + 49904^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (5724378641) 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 3 ways as a sum of consecutive naturals, for example, 35777287 + ... + 35777446.

Almost surely, 2^5724378640 is an apocalyptic number.

It is an amenable number.

5724378640 is an abundant number, since it is smaller than the sum of its proper divisors (7584801884).

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

5724378640 is a wasteful number, since it uses less digits than its factorization.

5724378640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71554746 (or 71554740 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 46.

The square root of 5724378640 is about 75659.6235782336. The cubic root of 5724378640 is about 1788.8590296545.

The spelling of 5724378640 in words is "five billion, seven hundred twenty-four million, three hundred seventy-eight thousand, six hundred forty".