4731424821 has 24 divisors (see below), whose sum is σ = 7242300000. Its totient is φ = 2968196832.

The previous prime is 4731424799. The next prime is 4731424843. The reversal of 4731424821 is 1284241374.

4731424821 is a `hidden beast` number, since 473 + 142 + 48 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (4731424799) and next prime (4731424843).

It is not a de Polignac number, because 4731424821 - 2¹⁰ = 4731423797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4731424021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67371 + ... + 118328.

It is an arithmetic number, because the mean of its divisors is an integer number (301762500).

Almost surely, 2^4731424821 is an apocalyptic number.

It is an amenable number.

4731424821 is a deficient number, since it is larger than the sum of its proper divisors (2510875179).

4731424821 is a wasteful number, since it uses less digits than its factorization.

4731424821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185873 (or 185870 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 4731424821 is about 68785.3532447134. The cubic root of 4731424821 is about 1678.7936375651.

The spelling of 4731424821 in words is "four billion, seven hundred thirty-one million, four hundred twenty-four thousand, eight hundred twenty-one".