5634621613 has 4 divisors (see below), whose sum is σ = 5828918940. Its totient is φ = 5440324288.

The previous prime is 5634621611. The next prime is 5634621647. The reversal of 5634621613 is 3161264365.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3638140489 + 1996481124 = 60317^2 + 44682^2 .

It is a cyclic number.

It is not a de Polignac number, because 5634621613 - 2¹ = 5634621611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5634621611) 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, 97148620 + ... + 97148677.

It is an arithmetic number, because the mean of its divisors is an integer number (1457229735).

Almost surely, 2^5634621613 is an apocalyptic number.

It is an amenable number.

5634621613 is a deficient number, since it is larger than the sum of its proper divisors (194297327).

5634621613 is a wasteful number, since it uses less digits than its factorization.

5634621613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194297326.

The product of its digits is 77760, while the sum is 37.

The square root of 5634621613 is about 75064.1166803420. The cubic root of 5634621613 is about 1779.4600909542.

Adding to 5634621613 its reverse (3161264365), we get a palindrome (8795885978).

The spelling of 5634621613 in words is "five billion, six hundred thirty-four million, six hundred twenty-one thousand, six hundred thirteen".