68775258 has 8 divisors (see below), whose sum is σ = 137550528. Its totient is φ = 22925084.

The previous prime is 68775253. The next prime is 68775277. The reversal of 68775258 is 85257786.

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

68775258 is an admirable number.

It is a super-2 number, since 2×68775258² = 9460072225933128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68775253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5731266 + ... + 5731277.

It is an arithmetic number, because the mean of its divisors is an integer number (17193816).

Almost surely, 2^68775258 is an apocalyptic number.

68775258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68775258 is a wasteful number, since it uses less digits than its factorization.

68775258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11462548.

The product of its digits is 940800, while the sum is 48.

The square root of 68775258 is about 8293.0849507285. The cubic root of 68775258 is about 409.7107974406.

The spelling of 68775258 in words is "sixty-eight million, seven hundred seventy-five thousand, two hundred fifty-eight".