5724001781 has 2 divisors, whose sum is σ = 5724001782. Its totient is φ = 5724001780.

The previous prime is 5724001757. The next prime is 5724001783. The reversal of 5724001781 is 1871004275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5675211556 + 48790225 = 75334^2 + 6985^2 .

It is a cyclic number.

It is not a de Polignac number, because 5724001781 - 2¹⁰ = 5724000757 is a prime.

It is a super-2 number, since 2×5724001781² = 65528392777782343922, which contains 22 as substring.

Together with 5724001783, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5724001783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2862000890 + 2862000891.

It is an arithmetic number, because the mean of its divisors is an integer number (2862000891).

Almost surely, 2^5724001781 is an apocalyptic number.

It is an amenable number.

5724001781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5724001781 is an equidigital number, since it uses as much as digits as its factorization.

5724001781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 5724001781 is about 75657.1330477173. The cubic root of 5724001781 is about 1788.8197728511.

The spelling of 5724001781 in words is "five billion, seven hundred twenty-four million, one thousand, seven hundred eighty-one".