4493636513 has 4 divisors (see below), whose sum is σ = 4502570688. Its totient is φ = 4484702340.

The previous prime is 4493636461. The next prime is 4493636533. The reversal of 4493636513 is 3156363944.

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.

It is a cyclic number.

It is not a de Polignac number, because 4493636513 - 2²⁰ = 4492587937 is a prime.

It is a super-2 number, since 2×4493636513² = 40385538221933598338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4493636533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4466333 + ... + 4467338.

It is an arithmetic number, because the mean of its divisors is an integer number (1125642672).

Almost surely, 2^4493636513 is an apocalyptic number.

It is an amenable number.

4493636513 is a deficient number, since it is larger than the sum of its proper divisors (8934175).

4493636513 is an equidigital number, since it uses as much as digits as its factorization.

4493636513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8934174.

The product of its digits is 699840, while the sum is 44.

The square root of 4493636513 is about 67034.5919134293. The cubic root of 4493636513 is about 1650.1850435874.

The spelling of 4493636513 in words is "four billion, four hundred ninety-three million, six hundred thirty-six thousand, five hundred thirteen".