6444124407 has 36 divisors (see below), whose sum is σ = 10833846816. Its totient is φ = 3680328960.

The previous prime is 6444124391. The next prime is 6444124459. The reversal of 6444124407 is 7044214446.

6444124407 is a `hidden beast` number, since 644 + 4 + 1 + 2 + 4 + 4 + 0 + 7 = 666.

It is not a de Polignac number, because 6444124407 - 2⁴ = 6444124391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444124207) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1217607 + ... + 1222887.

Almost surely, 2^6444124407 is an apocalyptic number.

6444124407 is a deficient number, since it is larger than the sum of its proper divisors (4389722409).

6444124407 is a wasteful number, since it uses less digits than its factorization.

6444124407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8068 (or 8058 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

The square root of 6444124407 is about 80275.3038424645. The cubic root of 6444124407 is about 1860.8925849481.

The spelling of 6444124407 in words is "six billion, four hundred forty-four million, one hundred twenty-four thousand, four hundred seven".