6480575757 has 12 divisors (see below), whose sum is σ = 9361873404. Its totient is φ = 4319903040.

The previous prime is 6480575713. The next prime is 6480575771. The reversal of 6480575757 is 7575750846.

It is a happy number.

6480575757 is a `hidden beast` number, since 64 + 8 + 0 + 5 + 7 + 575 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1526386761 + 4954188996 = 39069^2 + 70386^2 .

It is not a de Polignac number, because 6480575757 - 2⁸ = 6480575501 is a prime.

It is a super-2 number, since 2×6480575757² = 83995724284432246098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6480574757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57907 + ... + 127727.

It is an arithmetic number, because the mean of its divisors is an integer number (780156117).

Almost surely, 2^6480575757 is an apocalyptic number.

It is an amenable number.

6480575757 is a deficient number, since it is larger than the sum of its proper divisors (2881297647).

6480575757 is a wasteful number, since it uses less digits than its factorization.

6480575757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80140 (or 80137 counting only the distinct ones).

The product of its (nonzero) digits is 8232000, while the sum is 54.

The square root of 6480575757 is about 80502.0233099765. The cubic root of 6480575757 is about 1864.3947183218.

The spelling of 6480575757 in words is "six billion, four hundred eighty million, five hundred seventy-five thousand, seven hundred fifty-seven".