3621036513 has 4 divisors (see below), whose sum is σ = 4828048688. Its totient is φ = 2414024340.

The previous prime is 3621036491. The next prime is 3621036527. The reversal of 3621036513 is 3156301263.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3156301263 = 3 ⋅1052100421.

It is not a de Polignac number, because 3621036513 - 2¹⁰ = 3621035489 is a prime.

It is a super-2 number, since 2×3621036513² = 26223810856958398338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3621034513) 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 3 ways as a sum of consecutive naturals, for example, 603506083 + ... + 603506088.

It is an arithmetic number, because the mean of its divisors is an integer number (1207012172).

Almost surely, 2^3621036513 is an apocalyptic number.

It is an amenable number.

3621036513 is a deficient number, since it is larger than the sum of its proper divisors (1207012175).

3621036513 is a wasteful number, since it uses less digits than its factorization.

3621036513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207012174.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 3621036513 is about 60175.0489239519. The cubic root of 3621036513 is about 1535.5983425652.

Adding to 3621036513 its reverse (3156301263), we get a palindrome (6777337776).

The spelling of 3621036513 in words is "three billion, six hundred twenty-one million, thirty-six thousand, five hundred thirteen".