6057745721 has 4 divisors (see below), whose sum is σ = 6058136100. Its totient is φ = 6057355344.

The previous prime is 6057745691. The next prime is 6057745723. The reversal of 6057745721 is 1275477506.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3908125225 + 2149620496 = 62515^2 + 46364^2 .

It is a cyclic number.

It is not a de Polignac number, because 6057745721 - 2¹⁰ = 6057744697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6057745723) 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 3 ways as a sum of consecutive naturals, for example, 170906 + ... + 203283.

It is an arithmetic number, because the mean of its divisors is an integer number (1514534025).

Almost surely, 2^6057745721 is an apocalyptic number.

It is an amenable number.

6057745721 is a deficient number, since it is larger than the sum of its proper divisors (390379).

6057745721 is a wasteful number, since it uses less digits than its factorization.

6057745721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390378.

The product of its (nonzero) digits is 411600, while the sum is 44.

The square root of 6057745721 is about 77831.5213843337. The cubic root of 6057745721 is about 1822.9314872054.

The spelling of 6057745721 in words is "six billion, fifty-seven million, seven hundred forty-five thousand, seven hundred twenty-one".