6403445433009 has 15 divisors (see below), whose sum is σ = 9565674729897. Its totient is φ = 4268948438988.

The previous prime is 6403445432999. The next prime is 6403445433013. The reversal of 6403445433009 is 9003345443046.

The square root of 6403445433009 is 2530503.

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

6403445433009 is a `hidden beast` number, since 6 + 40 + 34 + 4 + 543 + 30 + 0 + 9 = 666.

It is not a de Polignac number, because 6403445433009 - 2¹¹ = 6403445430961 is a prime.

It is a super-2 number, since 2×6403445433009² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6403445433809) 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, 22633944 + ... + 22915110.

Almost surely, 2^{6403445433009} is an apocalyptic number.

6403445433009 is the 2530503-rd square number.

6403445433009 is the 1265252-nd centered octagonal number.

It is an amenable number.

6403445433009 is a deficient number, since it is larger than the sum of its proper divisors (3162229296888).

6403445433009 is an frugal number, since it uses more digits than its factorization.

6403445433009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562346 (or 281170 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 45.

The spelling of 6403445433009 in words is "six trillion, four hundred three billion, four hundred forty-five million, four hundred thirty-three thousand, nine".