3243367561 has 8 divisors (see below), whose sum is σ = 3735002304. Its totient is φ = 2758806960.

The previous prime is 3243367553. The next prime is 3243367573. The reversal of 3243367561 is 1657633423.

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

It is not a de Polignac number, because 3243367561 - 2³ = 3243367553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3243367261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1767550 + ... + 1769383.

It is an arithmetic number, because the mean of its divisors is an integer number (466875288).

Almost surely, 2^3243367561 is an apocalyptic number.

It is an amenable number.

3243367561 is a deficient number, since it is larger than the sum of its proper divisors (491634743).

3243367561 is a wasteful number, since it uses less digits than its factorization.

3243367561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3537071.

The product of its digits is 272160, while the sum is 40.

The square root of 3243367561 is about 56950.5712087245. The cubic root of 3243367561 is about 1480.2397287892.

The spelling of 3243367561 in words is "three billion, two hundred forty-three million, three hundred sixty-seven thousand, five hundred sixty-one".