445355314421 has 2 divisors, whose sum is σ = 445355314422. Its totient is φ = 445355314420.

The previous prime is 445355314409. The next prime is 445355314501. The reversal of 445355314421 is 124413553544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 335575745521 + 109779568900 = 579289^2 + 331330^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445355314421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445355311421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222677657210 + 222677657211.

It is an arithmetic number, because the mean of its divisors is an integer number (222677657211).

Almost surely, 2^445355314421 is an apocalyptic number.

It is an amenable number.

445355314421 is a deficient number, since it is larger than the sum of its proper divisors (1).

445355314421 is an equidigital number, since it uses as much as digits as its factorization.

445355314421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576000, while the sum is 41.

Adding to 445355314421 its reverse (124413553544), we get a palindrome (569768867965).

The spelling of 445355314421 in words is "four hundred forty-five billion, three hundred fifty-five million, three hundred fourteen thousand, four hundred twenty-one".