168028612724786 has 24 divisors (see below), whose sum is σ = 283795957690812. Its totient is φ = 74513797212800.

The previous prime is 168028612724723. The next prime is 168028612724789. The reversal of 168028612724786 is 687427216820861.

It can be written as a sum of positive squares in 2 ways, for example, as 141143547748225 + 26885064976561 = 11880385^2 + 5185081^2 .

It is a super-2 number, since 2×168028612724786² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168028612724789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8467467035 + ... + 8467486878.

Almost surely, 2^{168028612724786} is an apocalyptic number.

168028612724786 is a deficient number, since it is larger than the sum of its proper divisors (115767344966026).

168028612724786 is a wasteful number, since it uses less digits than its factorization.

168028612724786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16934953978 (or 16934953967 counting only the distinct ones).

The product of its (nonzero) digits is 173408256, while the sum is 68.

The spelling of 168028612724786 in words is "one hundred sixty-eight trillion, twenty-eight billion, six hundred twelve million, seven hundred twenty-four thousand, seven hundred eighty-six".