4368601921 has 2 divisors, whose sum is σ = 4368601922. Its totient is φ = 4368601920.

The previous prime is 4368601873. The next prime is 4368601973. The reversal of 4368601921 is 1291068634.

4368601921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2837053696 + 1531548225 = 53264^2 + 39135^2 .

It is a cyclic number.

It is not a de Polignac number, because 4368601921 - 2¹⁷ = 4368470849 is a prime.

It is not a weakly prime, because it can be changed into another prime (4368601121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2184300960 + 2184300961.

It is an arithmetic number, because the mean of its divisors is an integer number (2184300961).

Almost surely, 2^4368601921 is an apocalyptic number.

It is an amenable number.

4368601921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4368601921 is an equidigital number, since it uses as much as digits as its factorization.

4368601921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 4368601921 is about 66095.4001500861. The cubic root of 4368601921 is about 1634.7354883874.

The spelling of 4368601921 in words is "four billion, three hundred sixty-eight million, six hundred one thousand, nine hundred twenty-one".