3624235561 has 4 divisors (see below), whose sum is σ = 3642448000. Its totient is φ = 3606023124.

The previous prime is 3624235529. The next prime is 3624235597. The reversal of 3624235561 is 1655324263.

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: 1655324263 = 29 ⋅57080147.

It is a cyclic number.

It is not a de Polignac number, because 3624235561 - 2⁵ = 3624235529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3624235561.

It is not an unprimeable number, because it can be changed into a prime (3624235501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9105921 + ... + 9106318.

It is an arithmetic number, because the mean of its divisors is an integer number (910612000).

Almost surely, 2^3624235561 is an apocalyptic number.

It is an amenable number.

3624235561 is a deficient number, since it is larger than the sum of its proper divisors (18212439).

3624235561 is a wasteful number, since it uses less digits than its factorization.

3624235561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18212438.

The product of its digits is 129600, while the sum is 37.

The square root of 3624235561 is about 60201.6242388858. The cubic root of 3624235561 is about 1536.0504236975.

The spelling of 3624235561 in words is "three billion, six hundred twenty-four million, two hundred thirty-five thousand, five hundred sixty-one".