4393206440649 has 24 divisors (see below), whose sum is σ = 6992804058240. Its totient is φ = 2640639288672.

The previous prime is 4393206440599. The next prime is 4393206440683. The reversal of 4393206440649 is 9460446023934.

It is a happy number.

4393206440649 is a `hidden beast` number, since 4 + 393 + 206 + 4 + 4 + 0 + 6 + 49 = 666.

It is not a de Polignac number, because 4393206440649 - 2²⁸ = 4392938005193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4393206440595 and 4393206440604.

It is not an unprimeable number, because it can be changed into a prime (4393206441649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 436608609 + ... + 436618670.

It is an arithmetic number, because the mean of its divisors is an integer number (291366835760).

Almost surely, 2^{4393206440649} is an apocalyptic number.

It is an amenable number.

4393206440649 is a deficient number, since it is larger than the sum of its proper divisors (2599597617591).

4393206440649 is a wasteful number, since it uses less digits than its factorization.

4393206440649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873227341 (or 873227338 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 54.

The spelling of 4393206440649 in words is "four trillion, three hundred ninety-three billion, two hundred six million, four hundred forty thousand, six hundred forty-nine".