674253466644440 has 128 divisors (see below), whose sum is σ = 1572180399014400. Its totient is φ = 259972719575040.

The previous prime is 674253466644437. The next prime is 674253466644467. The reversal of 674253466644440 is 44446664352476.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8463144926 + ... + 8463224594.

It is an arithmetic number, because the mean of its divisors is an integer number (12282659367300).

Almost surely, 2^{674253466644440} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674253466644440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786090199507200).

674253466644440 is an abundant number, since it is smaller than the sum of its proper divisors (897926932369960).

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

674253466644440 is a wasteful number, since it uses less digits than its factorization.

674253466644440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106525 (or 106521 counting only the distinct ones).

The product of its (nonzero) digits is 1114767360, while the sum is 65.

The spelling of 674253466644440 in words is "six hundred seventy-four trillion, two hundred fifty-three billion, four hundred sixty-six million, six hundred forty-four thousand, four hundred forty".