5721345730 has 8 divisors (see below), whose sum is σ = 10298422332. Its totient is φ = 2288538288.

The previous prime is 5721345713. The next prime is 5721345737. The reversal of 5721345730 is 375431275.

It can be written as a sum of positive squares in 2 ways, for example, as 5483846809 + 237498921 = 74053^2 + 15411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 5721345730.

It is not an unprimeable number, because it can be changed into a prime (5721345737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286067277 + ... + 286067296.

Almost surely, 2^5721345730 is an apocalyptic number.

5721345730 is a deficient number, since it is larger than the sum of its proper divisors (4577076602).

5721345730 is a wasteful number, since it uses less digits than its factorization.

5721345730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572134580.

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 5721345730 is about 75639.5778015716. The cubic root of 5721345730 is about 1788.5430473596.

The spelling of 5721345730 in words is "five billion, seven hundred twenty-one million, three hundred forty-five thousand, seven hundred thirty".