68171258 has 8 divisors (see below), whose sum is σ = 108272052. Its totient is φ = 32080576.

The previous prime is 68171251. The next prime is 68171261. The reversal of 68171258 is 85217186.

It can be written as a sum of positive squares in 2 ways, for example, as 66699889 + 1471369 = 8167^2 + 1213^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (68171251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002485 + ... + 1002552.

Almost surely, 2^68171258 is an apocalyptic number.

68171258 is a deficient number, since it is larger than the sum of its proper divisors (40100794).

68171258 is a wasteful number, since it uses less digits than its factorization.

68171258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005056.

The product of its digits is 26880, while the sum is 38.

The square root of 68171258 is about 8256.5887629214. The cubic root of 68171258 is about 408.5078778805.

The spelling of 68171258 in words is "sixty-eight million, one hundred seventy-one thousand, two hundred fifty-eight".