3520452574645 has 8 divisors (see below), whose sum is σ = 4225026665304. Its totient is φ = 2816039675904.

The previous prime is 3520452574603. The next prime is 3520452574721. The reversal of 3520452574645 is 5464752540253.

It can be written as a sum of positive squares in 4 ways, for example, as 511844377489 + 3008608197156 = 715433^2 + 1734534^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3520452574645 - 2⁷ = 3520452574517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3520452574592 and 3520452574601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40249924 + ... + 40337293.

It is an arithmetic number, because the mean of its divisors is an integer number (528128333163).

Almost surely, 2^{3520452574645} is an apocalyptic number.

It is an amenable number.

3520452574645 is a deficient number, since it is larger than the sum of its proper divisors (704574090659).

3520452574645 is an equidigital number, since it uses as much as digits as its factorization.

3520452574645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80595959.

The product of its (nonzero) digits is 20160000, while the sum is 52.

The spelling of 3520452574645 in words is "three trillion, five hundred twenty billion, four hundred fifty-two million, five hundred seventy-four thousand, six hundred forty-five".