445630695988 has 12 divisors (see below), whose sum is σ = 783259194340. Its totient is φ = 221842354752.

The previous prime is 445630695977. The next prime is 445630695989. The reversal of 445630695988 is 889596036544.

It can be written as a sum of positive squares in 2 ways, for example, as 266970622864 + 178660073124 = 516692^2 + 422682^2 .

It is a super-2 number, since 2×445630695988² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (67) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445630695989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243247281 + ... + 243249112.

Almost surely, 2^445630695988 is an apocalyptic number.

It is an amenable number.

445630695988 is a deficient number, since it is larger than the sum of its proper divisors (337628498352).

445630695988 is a wasteful number, since it uses less digits than its factorization.

445630695988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486496626 (or 486496624 counting only the distinct ones).

The product of its (nonzero) digits is 223948800, while the sum is 67.

The spelling of 445630695988 in words is "four hundred forty-five billion, six hundred thirty million, six hundred ninety-five thousand, nine hundred eighty-eight".