445707117769 has 9 divisors (see below), whose sum is σ = 452121181869. Its totient is φ = 439382819820.

The previous prime is 445707117703. The next prime is 445707117827. The reversal of 445707117769 is 967711707544.

The square root of 445707117769 is 667613.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-445707117769 is a prime.

It is a super-2 number, since 2×445707117769² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445707117269) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 47395822 + ... + 47405224.

Almost surely, 2^445707117769 is an apocalyptic number.

445707117769 is the 667613-rd square number.

445707117769 is the 333807-th centered octagonal number.

It is an amenable number.

445707117769 is a deficient number, since it is larger than the sum of its proper divisors (6414064100).

445707117769 is an frugal number, since it uses more digits than its factorization.

445707117769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18948 (or 9474 counting only the distinct ones).

The product of its (nonzero) digits is 10372320, while the sum is 58.

The spelling of 445707117769 in words is "four hundred forty-five billion, seven hundred seven million, one hundred seventeen thousand, seven hundred sixty-nine".