168387704529 has 32 divisors (see below), whose sum is σ = 246897362304. Its totient is φ = 101235425280.

The previous prime is 168387704467. The next prime is 168387704557. The reversal of 168387704529 is 925407783861.

168387704529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168387704529 - 2⁸ = 168387704273 is a prime.

It is a super-2 number, since 2×168387704529² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168387704579) 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 31 ways as a sum of consecutive naturals, for example, 2210809 + ... + 2285705.

It is an arithmetic number, because the mean of its divisors is an integer number (7715542572).

It is a 1-persistent number, because it is pandigital, but 2⋅168387704529 = 336775409058 is not.

Almost surely, 2^168387704529 is an apocalyptic number.

It is an amenable number.

168387704529 is a deficient number, since it is larger than the sum of its proper divisors (78509657775).

168387704529 is a wasteful number, since it uses less digits than its factorization.

168387704529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75457.

The product of its (nonzero) digits is 20321280, while the sum is 60.

The spelling of 168387704529 in words is "one hundred sixty-eight billion, three hundred eighty-seven million, seven hundred four thousand, five hundred twenty-nine".