4325824721 has 2 divisors, whose sum is σ = 4325824722. Its totient is φ = 4325824720.

The previous prime is 4325824703. The next prime is 4325824799. The reversal of 4325824721 is 1274285234.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3351136321 + 974688400 = 57889^2 + 31220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4325824721 is a prime.

It is not a weakly prime, because it can be changed into another prime (4325824021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2162912360 + 2162912361.

It is an arithmetic number, because the mean of its divisors is an integer number (2162912361).

Almost surely, 2^4325824721 is an apocalyptic number.

It is an amenable number.

4325824721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4325824721 is an equidigital number, since it uses as much as digits as its factorization.

4325824721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 38.

The square root of 4325824721 is about 65771.0021285977. The cubic root of 4325824721 is about 1629.3822192470.

The spelling of 4325824721 in words is "four billion, three hundred twenty-five million, eight hundred twenty-four thousand, seven hundred twenty-one".