4445352454321 has 2 divisors, whose sum is σ = 4445352454322. Its totient is φ = 4445352454320.

The previous prime is 4445352454273. The next prime is 4445352454357. The reversal of 4445352454321 is 1234542535444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2685845711025 + 1759506743296 = 1638855^2 + 1326464^2 .

It is a cyclic number.

It is not a de Polignac number, because 4445352454321 - 2¹¹ = 4445352452273 is a prime.

It is a super-2 number, since 2×4445352454321² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4445352455321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222676227160 + 2222676227161.

It is an arithmetic number, because the mean of its divisors is an integer number (2222676227161).

Almost surely, 2^{4445352454321} is an apocalyptic number.

It is an amenable number.

4445352454321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4445352454321 is an equidigital number, since it uses as much as digits as its factorization.

4445352454321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608000, while the sum is 46.

Adding to 4445352454321 its reverse (1234542535444), we get a palindrome (5679894989765).

The spelling of 4445352454321 in words is "four trillion, four hundred forty-five billion, three hundred fifty-two million, four hundred fifty-four thousand, three hundred twenty-one".