874005631668 has 36 divisors (see below), whose sum is σ = 2379237554148. Its totient is φ = 268924809600.

The previous prime is 874005631651. The next prime is 874005631669. The reversal of 874005631668 is 866136500478.

874005631668 is a `hidden beast` number, since 8 + 7 + 4 + 0 + 0 + 563 + 16 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 63497952144 + 810507679524 = 251988^2 + 900282^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874005631669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 933766233 + ... + 933767168.

Almost surely, 2^874005631668 is an apocalyptic number.

It is an amenable number.

874005631668 is an abundant number, since it is smaller than the sum of its proper divisors (1505231922480).

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

874005631668 is a wasteful number, since it uses less digits than its factorization.

874005631668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867533424 (or 1867533419 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 874005631668 in words is "eight hundred seventy-four billion, five million, six hundred thirty-one thousand, six hundred sixty-eight".