5727217645 has 4 divisors (see below), whose sum is σ = 6872661180. Its totient is φ = 4581774112.

The previous prime is 5727217637. The next prime is 5727217663. The reversal of 5727217645 is 5467127275.

5727217645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 1383616809 + 4343600836 = 37197^2 + 65906^2 .

It is a cyclic number.

It is not a de Polignac number, because 5727217645 - 2³ = 5727217637 is a prime.

It is a super-3 number, since 3×5727217645³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5727217595 and 5727217604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572721760 + ... + 572721769.

It is an arithmetic number, because the mean of its divisors is an integer number (1718165295).

Almost surely, 2^5727217645 is an apocalyptic number.

It is an amenable number.

5727217645 is a deficient number, since it is larger than the sum of its proper divisors (1145443535).

5727217645 is a wasteful number, since it uses less digits than its factorization.

5727217645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145443534.

The product of its digits is 823200, while the sum is 46.

The square root of 5727217645 is about 75678.3829438764. The cubic root of 5727217645 is about 1789.1547089300.

The spelling of 5727217645 in words is "five billion, seven hundred twenty-seven million, two hundred seventeen thousand, six hundred forty-five".