744440673678 has 16 divisors (see below), whose sum is σ = 1603410681936. Its totient is φ = 229058668800.

The previous prime is 744440673623. The next prime is 744440673679. The reversal of 744440673678 is 876376044447.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744440673679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4772055523 + ... + 4772055678.

It is an arithmetic number, because the mean of its divisors is an integer number (100213167621).

Almost surely, 2^744440673678 is an apocalyptic number.

744440673678 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

744440673678 is an abundant number, since it is smaller than the sum of its proper divisors (858970008258).

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

744440673678 is a wasteful number, since it uses less digits than its factorization.

744440673678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9544111219.

The product of its (nonzero) digits is 75866112, while the sum is 60.

The spelling of 744440673678 in words is "seven hundred forty-four billion, four hundred forty million, six hundred seventy-three thousand, six hundred seventy-eight".