68830518 has 32 divisors (see below), whose sum is σ = 146534400. Its totient is φ = 21479040.

The previous prime is 68830451. The next prime is 68830537. The reversal of 68830518 is 81503886.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18603 + ... + 21993.

It is an arithmetic number, because the mean of its divisors is an integer number (4579200).

Almost surely, 2^68830518 is an apocalyptic number.

68830518 is an abundant number, since it is smaller than the sum of its proper divisors (77703882).

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

68830518 is a wasteful number, since it uses less digits than its factorization.

68830518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3612.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 68830518 is about 8296.4159731778. The cubic root of 68830518 is about 409.8205004463.

The spelling of 68830518 in words is "sixty-eight million, eight hundred thirty thousand, five hundred eighteen".