168042879 has 24 divisors (see below), whose sum is σ = 246984192. Its totient is φ = 110080080.

The previous prime is 168042877. The next prime is 168042911. The reversal of 168042879 is 978240861.

It is not a de Polignac number, because 168042879 - 2¹ = 168042877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168042877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169074 + ... + 170064.

It is an arithmetic number, because the mean of its divisors is an integer number (10291008).

Almost surely, 2^168042879 is an apocalyptic number.

168042879 is a deficient number, since it is larger than the sum of its proper divisors (78941313).

168042879 is a wasteful number, since it uses less digits than its factorization.

168042879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307 (or 1304 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 168042879 is about 12963.1353846205. The cubic root of 168042879 is about 551.8317756915.

It can be divided in two parts, 168042 and 879, that added together give a square (168921 = 411²).

The spelling of 168042879 in words is "one hundred sixty-eight million, forty-two thousand, eight hundred seventy-nine".