4445944387453 has 2 divisors, whose sum is σ = 4445944387454. Its totient is φ = 4445944387452.

The previous prime is 4445944387441. The next prime is 4445944387459. The reversal of 4445944387453 is 3547834495444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4374568853209 + 71375534244 = 2091547^2 + 267162^2 .

It is a cyclic number.

It is not a de Polignac number, because 4445944387453 - 2²⁹ = 4445407516541 is a prime.

It is a super-4 number, since 4×4445944387453⁴ (a number of 52 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4445944387459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222972193726 + 2222972193727.

It is an arithmetic number, because the mean of its divisors is an integer number (2222972193727).

Almost surely, 2^{4445944387453} is an apocalyptic number.

It is an amenable number.

4445944387453 is a deficient number, since it is larger than the sum of its proper divisors (1).

4445944387453 is an equidigital number, since it uses as much as digits as its factorization.

4445944387453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 464486400, while the sum is 64.

The spelling of 4445944387453 in words is "four trillion, four hundred forty-five billion, nine hundred forty-four million, three hundred eighty-seven thousand, four hundred fifty-three".