674240685312 has 144 divisors (see below), whose sum is σ = 1849781670912. Its totient is φ = 217908049920.

The previous prime is 674240685289. The next prime is 674240685317. The reversal of 674240685312 is 213586042476.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674240685317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3774987 + ... + 3949557.

It is an arithmetic number, because the mean of its divisors is an integer number (12845706048).

Almost surely, 2^674240685312 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 674240685312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (924890835456).

674240685312 is an abundant number, since it is smaller than the sum of its proper divisors (1175540985600).

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

674240685312 is a wasteful number, since it uses less digits than its factorization.

674240685312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174744 (or 174730 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 674240685312 in words is "six hundred seventy-four billion, two hundred forty million, six hundred eighty-five thousand, three hundred twelve".