4665492821 has 4 divisors (see below), whose sum is σ = 5089628544. Its totient is φ = 4241357100.

The previous prime is 4665492803. The next prime is 4665492833. The reversal of 4665492821 is 1282945664.

4665492821 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 not a de Polignac number, because 4665492821 - 2¹⁰ = 4665491797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4665492521) 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, 212067845 + ... + 212067866.

It is an arithmetic number, because the mean of its divisors is an integer number (1272407136).

Almost surely, 2^4665492821 is an apocalyptic number.

It is an amenable number.

4665492821 is a deficient number, since it is larger than the sum of its proper divisors (424135723).

4665492821 is a wasteful number, since it uses less digits than its factorization.

4665492821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424135722.

The product of its digits is 829440, while the sum is 47.

The square root of 4665492821 is about 68304.4128955077. The cubic root of 4665492821 is about 1670.9591847133.

The spelling of 4665492821 in words is "four billion, six hundred sixty-five million, four hundred ninety-two thousand, eight hundred twenty-one".