4721825906 has 24 divisors (see below), whose sum is σ = 8243568000. Its totient is φ = 2022543432.

The previous prime is 4721825903. The next prime is 4721825909. The reversal of 4721825906 is 6095281274.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4721825903) and next prime (4721825909).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4721825903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183851 + ... + 207953.

It is an arithmetic number, because the mean of its divisors is an integer number (343482000).

Almost surely, 2^4721825906 is an apocalyptic number.

4721825906 is a deficient number, since it is larger than the sum of its proper divisors (3521742094).

4721825906 is a wasteful number, since it uses less digits than its factorization.

4721825906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26118 (or 26111 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 4721825906 is about 68715.5434090425. The cubic root of 4721825906 is about 1677.6575803958.

The spelling of 4721825906 in words is "four billion, seven hundred twenty-one million, eight hundred twenty-five thousand, nine hundred six".