4641232721 has 4 divisors (see below), whose sum is σ = 4843025472. Its totient is φ = 4439439972.

The previous prime is 4641232711. The next prime is 4641232793. The reversal of 4641232721 is 1272321464.

4641232721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-4641232721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4641232711) 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, 100896341 + ... + 100896386.

It is an arithmetic number, because the mean of its divisors is an integer number (1210756368).

Almost surely, 2^4641232721 is an apocalyptic number.

It is an amenable number.

4641232721 is a deficient number, since it is larger than the sum of its proper divisors (201792751).

4641232721 is a wasteful number, since it uses less digits than its factorization.

4641232721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201792750.

The product of its digits is 16128, while the sum is 32.

The square root of 4641232721 is about 68126.5933465046. The cubic root of 4641232721 is about 1668.0578760299.

The spelling of 4641232721 in words is "four billion, six hundred forty-one million, two hundred thirty-two thousand, seven hundred twenty-one".