168468368487 has 32 divisors (see below), whose sum is σ = 229394272512. Its totient is φ = 109950407424.

The previous prime is 168468368441. The next prime is 168468368501. The reversal of 168468368487 is 784863864861.

It is not a de Polignac number, because 168468368487 - 2¹⁵ = 168468335719 is a prime.

It is a super-2 number, since 2×168468368487² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168468368417) 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 31 ways as a sum of consecutive naturals, for example, 21826953 + ... + 21834669.

It is an arithmetic number, because the mean of its divisors is an integer number (7168571016).

Almost surely, 2^168468368487 is an apocalyptic number.

168468368487 is a deficient number, since it is larger than the sum of its proper divisors (60925904025).

168468368487 is a wasteful number, since it uses less digits than its factorization.

168468368487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8447.

The product of its digits is 297271296, while the sum is 69.

The spelling of 168468368487 in words is "one hundred sixty-eight billion, four hundred sixty-eight million, three hundred sixty-eight thousand, four hundred eighty-seven".