5721971385 has 16 divisors (see below), whose sum is σ = 9859397184. Its totient is φ = 2816970432.

The previous prime is 5721971377. The next prime is 5721971389. The reversal of 5721971385 is 5831791275.

It is not a de Polignac number, because 5721971385 - 2³ = 5721971377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5721971389) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14671527 + ... + 14671916.

It is an arithmetic number, because the mean of its divisors is an integer number (616212324).

Almost surely, 2^5721971385 is an apocalyptic number.

It is an amenable number.

5721971385 is a deficient number, since it is larger than the sum of its proper divisors (4137425799).

5721971385 is a wasteful number, since it uses less digits than its factorization.

5721971385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29343464.

The product of its digits is 529200, while the sum is 48.

The square root of 5721971385 is about 75643.7134532672. The cubic root of 5721971385 is about 1788.6082400704.

The spelling of 5721971385 in words is "five billion, seven hundred twenty-one million, nine hundred seventy-one thousand, three hundred eighty-five".