3520636645 has 8 divisors (see below), whose sum is σ = 4230485280. Its totient is φ = 2812695120.

The previous prime is 3520636591. The next prime is 3520636649. The reversal of 3520636645 is 5466360253.

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

It is not a de Polignac number, because 3520636645 - 2¹³ = 3520628453 is a prime.

It is a super-2 number, since 2×3520636645² = 24789764772233712050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3520636598 and 3520636607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520636649) 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 7 ways as a sum of consecutive naturals, for example, 472711 + ... + 480100.

It is an arithmetic number, because the mean of its divisors is an integer number (528810660).

Almost surely, 2^3520636645 is an apocalyptic number.

It is an amenable number.

3520636645 is a deficient number, since it is larger than the sum of its proper divisors (709848635).

3520636645 is an equidigital number, since it uses as much as digits as its factorization.

3520636645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953555.

The product of its (nonzero) digits is 388800, while the sum is 40.

The square root of 3520636645 is about 59334.9529788303. The cubic root of 3520636645 is about 1521.2726882712.

Adding to 3520636645 its reverse (5466360253), we get a palindrome (8986996898).

The spelling of 3520636645 in words is "three billion, five hundred twenty million, six hundred thirty-six thousand, six hundred forty-five".