4464921921 has 8 divisors (see below), whose sum is σ = 6028586880. Its totient is φ = 2938935792.

The previous prime is 4464921919. The next prime is 4464921949. The reversal of 4464921921 is 1291294644.

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

It is not a de Polignac number, because 4464921921 - 2¹ = 4464921919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4464921911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9419430 + ... + 9419903.

It is an arithmetic number, because the mean of its divisors is an integer number (753573360).

Almost surely, 2^4464921921 is an apocalyptic number.

It is an amenable number.

4464921921 is a deficient number, since it is larger than the sum of its proper divisors (1563664959).

4464921921 is a wasteful number, since it uses less digits than its factorization.

4464921921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18839415.

The product of its digits is 124416, while the sum is 42.

The square root of 4464921921 is about 66820.0712436016. The cubic root of 4464921921 is about 1646.6626047195.

The spelling of 4464921921 in words is "four billion, four hundred sixty-four million, nine hundred twenty-one thousand, nine hundred twenty-one".