451424421001 has 2 divisors, whose sum is σ = 451424421002. Its totient is φ = 451424421000.

The previous prime is 451424420977. The next prime is 451424421037. The reversal of 451424421001 is 100124424154.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 450342997776 + 1081423225 = 671076^2 + 32885^2 .

It is a cyclic number.

It is not a de Polignac number, because 451424421001 - 2²⁹ = 450887550089 is a prime.

It is not a weakly prime, because it can be changed into another prime (451424421401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225712210500 + 225712210501.

It is an arithmetic number, because the mean of its divisors is an integer number (225712210501).

Almost surely, 2^451424421001 is an apocalyptic number.

It is an amenable number.

451424421001 is a deficient number, since it is larger than the sum of its proper divisors (1).

451424421001 is an equidigital number, since it uses as much as digits as its factorization.

451424421001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 451424421001 its reverse (100124424154), we get a palindrome (551548845155).

The spelling of 451424421001 in words is "four hundred fifty-one billion, four hundred twenty-four million, four hundred twenty-one thousand, one".