4468420421 has 2 divisors, whose sum is σ = 4468420422. Its totient is φ = 4468420420.

The previous prime is 4468420391. The next prime is 4468420433. The reversal of 4468420421 is 1240248644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2747332225 + 1721088196 = 52415^2 + 41486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4468420421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4468425421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2234210210 + 2234210211.

It is an arithmetic number, because the mean of its divisors is an integer number (2234210211).

Almost surely, 2^4468420421 is an apocalyptic number.

It is an amenable number.

4468420421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4468420421 is an equidigital number, since it uses as much as digits as its factorization.

4468420421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49152, while the sum is 35.

The square root of 4468420421 is about 66846.2446289992. The cubic root of 4468420421 is about 1647.0925745478.

The spelling of 4468420421 in words is "four billion, four hundred sixty-eight million, four hundred twenty thousand, four hundred twenty-one".