68019015 has 16 divisors (see below), whose sum is σ = 109351296. Its totient is φ = 36103200.

The previous prime is 68018983. The next prime is 68019059. The reversal of 68019015 is 51091086.

It is a happy number.

It is not a de Polignac number, because 68019015 - 2⁵ = 68018983 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7581 + ... + 13910.

It is an arithmetic number, because the mean of its divisors is an integer number (6834456).

Almost surely, 2^68019015 is an apocalyptic number.

68019015 is a deficient number, since it is larger than the sum of its proper divisors (41332281).

68019015 is a wasteful number, since it uses less digits than its factorization.

68019015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21710.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 68019015 is about 8247.3641243733. The cubic root of 68019015 is about 408.2035520734.

The spelling of 68019015 in words is "sixty-eight million, nineteen thousand, fifteen".