6459360421 has 2 divisors, whose sum is σ = 6459360422. Its totient is φ = 6459360420.

The previous prime is 6459360373. The next prime is 6459360437. The reversal of 6459360421 is 1240639546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5231628900 + 1227731521 = 72330^2 + 35039^2 .

It is a cyclic number.

It is not a de Polignac number, because 6459360421 - 2¹⁵ = 6459327653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6459360451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3229680210 + 3229680211.

It is an arithmetic number, because the mean of its divisors is an integer number (3229680211).

Almost surely, 2^6459360421 is an apocalyptic number.

It is an amenable number.

6459360421 is a deficient number, since it is larger than the sum of its proper divisors (1).

6459360421 is an equidigital number, since it uses as much as digits as its factorization.

6459360421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 6459360421 is about 80370.1463293430. The cubic root of 6459360421 is about 1862.3580165086.

Adding to 6459360421 its reverse (1240639546), we get a palindrome (7699999967).

The spelling of 6459360421 in words is "six billion, four hundred fifty-nine million, three hundred sixty thousand, four hundred twenty-one".