168674643488 has 48 divisors (see below), whose sum is σ = 357660437400. Its totient is φ = 77841616896.

The previous prime is 168674643481. The next prime is 168674643491. The reversal of 168674643488 is 884346476861.

It can be written as a sum of positive squares in 4 ways, for example, as 132341708944 + 36332934544 = 363788^2 + 190612^2 .

It is a super-2 number, since 2×168674643488² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168674643481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5871656 + ... + 5900312.

Almost surely, 2^168674643488 is an apocalyptic number.

It is an amenable number.

168674643488 is an abundant number, since it is smaller than the sum of its proper divisors (188985793912).

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

168674643488 is a wasteful number, since it uses less digits than its factorization.

168674643488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42829 (or 42821 counting only the distinct ones).

The product of its digits is 148635648, while the sum is 65.

The spelling of 168674643488 in words is "one hundred sixty-eight billion, six hundred seventy-four million, six hundred forty-three thousand, four hundred eighty-eight".