168127869 has 48 divisors (see below), whose sum is σ = 284036928. Its totient is φ = 87671808.

The previous prime is 168127847. The next prime is 168127873. The reversal of 168127869 is 968721861.

168127869 = 1261² + 1262² + ... + 1358².

It is not a de Polignac number, because 168127869 - 2⁵ = 168127837 is a prime.

It is a super-2 number, since 2×168127869² = 56533960668962322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168127669) 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, 184914 + ... + 185820.

It is an arithmetic number, because the mean of its divisors is an integer number (5917436).

Almost surely, 2^168127869 is an apocalyptic number.

It is an amenable number.

168127869 is a deficient number, since it is larger than the sum of its proper divisors (115909059).

168127869 is a wasteful number, since it uses less digits than its factorization.

168127869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034 (or 1027 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 168127869 is about 12966.4131123453. The cubic root of 168127869 is about 551.9247921849.

The spelling of 168127869 in words is "one hundred sixty-eight million, one hundred twenty-seven thousand, eight hundred sixty-nine".