674198968128 has 112 divisors (see below), whose sum is σ = 2044116328320. Its totient is φ = 192111704064.

The previous prime is 674198968073. The next prime is 674198968129. The reversal of 674198968128 is 821869891476.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674198968129) 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, 171123 + ... + 1173746.

Almost surely, 2^674198968128 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 674198968128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1022058164160).

674198968128 is an abundant number, since it is smaller than the sum of its proper divisors (1369917360192).

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

674198968128 is a wasteful number, since it uses less digits than its factorization.

674198968128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345264 (or 1345254 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 69.

The spelling of 674198968128 in words is "six hundred seventy-four billion, one hundred ninety-eight million, nine hundred sixty-eight thousand, one hundred twenty-eight".