446642265969 has 15 divisors (see below), whose sum is σ = 667215333147. Its totient is φ = 297757500768.

The previous prime is 446642265967. The next prime is 446642265983. The reversal of 446642265969 is 969562246644.

The square root of 446642265969 is 668313.

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

446642265969 is a `hidden beast` number, since 4 + 4 + 66 + 422 + 65 + 96 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3469799025 + 443172466944 = 58905^2 + 665712^2 .

It is not a de Polignac number, because 446642265969 - 2¹ = 446642265967 is a prime.

It is a super-2 number, since 2×446642265969² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (446642265967) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 5977689 + ... + 6051945.

Almost surely, 2^446642265969 is an apocalyptic number.

446642265969 is the 668313-rd square number.

446642265969 is the 334157-th centered octagonal number.

It is an amenable number.

446642265969 is a deficient number, since it is larger than the sum of its proper divisors (220573067178).

446642265969 is an frugal number, since it uses more digits than its factorization.

446642265969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148526 (or 74260 counting only the distinct ones).

The product of its digits is 134369280, while the sum is 63.

The spelling of 446642265969 in words is "four hundred forty-six billion, six hundred forty-two million, two hundred sixty-five thousand, nine hundred sixty-nine".