445263314565253 has 8 divisors (see below), whose sum is σ = 471455467680600. Its totient is φ = 419071182942720.

The previous prime is 445263314565211. The next prime is 445263314565331. The reversal of 445263314565253 is 352565413362544.

It can be written as a sum of positive squares in 4 ways, for example, as 269599914572004 + 175663399993249 = 16419498^2 + 13253807^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 445263314565253 - 2⁹ = 445263314564741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445263314565353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60012913 + ... + 67022953.

It is an arithmetic number, because the mean of its divisors is an integer number (58931933460075).

Almost surely, 2^{445263314565253} is an apocalyptic number.

It is an amenable number.

445263314565253 is a deficient number, since it is larger than the sum of its proper divisors (26192153115347).

445263314565253 is a wasteful number, since it uses less digits than its factorization.

445263314565253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10746407.

The product of its digits is 155520000, while the sum is 58.

The spelling of 445263314565253 in words is "four hundred forty-five trillion, two hundred sixty-three billion, three hundred fourteen million, five hundred sixty-five thousand, two hundred fifty-three".