3249072848221 has 4 divisors (see below), whose sum is σ = 3249076791744. Its totient is φ = 3249068904700.

The previous prime is 3249072848209. The next prime is 3249072848269. The reversal of 3249072848221 is 1228482709423.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3249072848221 - 2²⁵ = 3249039293789 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 (3249072848321) 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, 212965 + ... + 2558026.

It is an arithmetic number, because the mean of its divisors is an integer number (812269197936).

Almost surely, 2^{3249072848221} is an apocalyptic number.

It is an amenable number.

3249072848221 is a deficient number, since it is larger than the sum of its proper divisors (3943523).

3249072848221 is a wasteful number, since it uses less digits than its factorization.

3249072848221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943522.

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 3249072848221 in words is "three trillion, two hundred forty-nine billion, seventy-two million, eight hundred forty-eight thousand, two hundred twenty-one".