4046450621 has 2 divisors, whose sum is σ = 4046450622. Its totient is φ = 4046450620.

The previous prime is 4046450609. The next prime is 4046450657. The reversal of 4046450621 is 1260546404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3473805721 + 572644900 = 58939^2 + 23930^2 .

It is a cyclic number.

It is not a de Polignac number, because 4046450621 - 2⁶ = 4046450557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4046450671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2023225310 + 2023225311.

It is an arithmetic number, because the mean of its divisors is an integer number (2023225311).

Almost surely, 2^4046450621 is an apocalyptic number.

It is an amenable number.

4046450621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4046450621 is an equidigital number, since it uses as much as digits as its factorization.

4046450621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 4046450621 is about 63611.7176391268. The cubic root of 4046450621 is about 1593.5220660707.

The spelling of 4046450621 in words is "four billion, forty-six million, four hundred fifty thousand, six hundred twenty-one".