3520700580609 has 9 divisors (see below), whose sum is σ = 5085464525089. Its totient is φ = 2347129967700.

The previous prime is 3520700580589. The next prime is 3520700580611. The reversal of 3520700580609 is 9060850070253.

It is a happy number.

The square root of 3520700580609 is 1876353.

It is a perfect power (a square), and thus also a powerful number.

3520700580609 is a `hidden beast` number, since 3 + 5 + 2 + 0 + 7 + 0 + 0 + 580 + 60 + 9 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 3520700580609 - 2¹⁵ = 3520700547841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3520700580619) 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 in 8 ways as a sum of consecutive naturals, for example, 5316334 + ... + 5941784.

Almost surely, 2^{3520700580609} is an apocalyptic number.

3520700580609 is the 1876353-rd square number.

3520700580609 is the 938177-th centered octagonal number.

It is an amenable number.

3520700580609 is a deficient number, since it is larger than the sum of its proper divisors (1564763944480).

3520700580609 is an frugal number, since it uses more digits than its factorization.

3520700580609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250908 (or 625454 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 3520700580609 in words is "three trillion, five hundred twenty billion, seven hundred million, five hundred eighty thousand, six hundred nine".