459749950421 has 2 divisors, whose sum is σ = 459749950422. Its totient is φ = 459749950420.

The previous prime is 459749950397. The next prime is 459749950423. The reversal of 459749950421 is 124059947954.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 454328573521 + 5421376900 = 674039^2 + 73630^2 .

It is a cyclic number.

It is not a de Polignac number, because 459749950421 - 2³⁰ = 458676208597 is a prime.

It is a super-2 number, since 2×459749950421² (a number of 24 digits) contains 22 as substring.

Together with 459749950423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (459749950423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229874975210 + 229874975211.

It is an arithmetic number, because the mean of its divisors is an integer number (229874975211).

Almost surely, 2^459749950421 is an apocalyptic number.

It is an amenable number.

459749950421 is a deficient number, since it is larger than the sum of its proper divisors (1).

459749950421 is an equidigital number, since it uses as much as digits as its factorization.

459749950421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16329600, while the sum is 59.

The spelling of 459749950421 in words is "four hundred fifty-nine billion, seven hundred forty-nine million, nine hundred fifty thousand, four hundred twenty-one".