6738663744 has 84 divisors (see below), whose sum is σ = 19348399200. Its totient is φ = 2242356480.

The previous prime is 6738663721. The next prime is 6738663749. The reversal of 6738663744 is 4473668376.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6738663749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335259 + ... + 354789.

Almost surely, 2^6738663744 is an apocalyptic number.

6738663744 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6738663744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9674199600).

6738663744 is an abundant number, since it is smaller than the sum of its proper divisors (12609735456).

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

6738663744 is a wasteful number, since it uses less digits than its factorization.

6738663744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20148 (or 20135 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 54.

The square root of 6738663744 is about 82089.3643780971. The cubic root of 6738663744 is about 1888.8229977497.

The spelling of 6738663744 in words is "six billion, seven hundred thirty-eight million, six hundred sixty-three thousand, seven hundred forty-four".