6126744440 has 16 divisors (see below), whose sum is σ = 13785175080. Its totient is φ = 2450697760.

The previous prime is 6126744409. The next prime is 6126744443. The reversal of 6126744440 is 444476216.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6126744394 and 6126744403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6126744443) by changing a digit.

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, 76584266 + ... + 76584345.

Almost surely, 2^6126744440 is an apocalyptic number.

It is an amenable number.

6126744440 is an abundant number, since it is smaller than the sum of its proper divisors (7658430640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6126744440 is a wasteful number, since it uses less digits than its factorization.

6126744440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153168622 (or 153168618 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 6126744440 is about 78273.5232374268. The cubic root of 6126744440 is about 1829.8265375512.

The spelling of 6126744440 in words is "six billion, one hundred twenty-six million, seven hundred forty-four thousand, four hundred forty".