674373376728 has 192 divisors, whose sum is σ = 1892481084000. Its totient is φ = 216833869824.

The previous prime is 674373376727. The next prime is 674373376751. The reversal of 674373376728 is 827673373476.

It is a happy number.

674373376728 is a `hidden beast` number, since 67 + 437 + 3 + 3 + 76 + 72 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674373376727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60787150 + ... + 60798242.

Almost surely, 2^674373376728 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 674373376728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (946240542000).

674373376728 is an abundant number, since it is smaller than the sum of its proper divisors (1218107707272).

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

674373376728 is a wasteful number, since it uses less digits than its factorization.

674373376728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11426 (or 11419 counting only the distinct ones).

The product of its digits is 149361408, while the sum is 63.

The spelling of 674373376728 in words is "six hundred seventy-four billion, three hundred seventy-three million, three hundred seventy-six thousand, seven hundred twenty-eight".