445253434688 has 28 divisors (see below), whose sum is σ = 883706800020. Its totient is φ = 222587154432.

The previous prime is 445253434669. The next prime is 445253434723. The reversal of 445253434688 is 886434352544.

It can be written as a sum of positive squares in 2 ways, for example, as 408515279104 + 36738155584 = 639152^2 + 191672^2 .

It is a super-2 number, since 2×445253434688² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253553 + ... + 977136.

Almost surely, 2^445253434688 is an apocalyptic number.

It is an amenable number.

445253434688 is a deficient number, since it is larger than the sum of its proper divisors (438453365332).

445253434688 is a wasteful number, since it uses less digits than its factorization.

445253434688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236354 (or 1236344 counting only the distinct ones).

The product of its digits is 44236800, while the sum is 56.

The spelling of 445253434688 in words is "four hundred forty-five billion, two hundred fifty-three million, four hundred thirty-four thousand, six hundred eighty-eight".