68595518045 has 16 divisors (see below), whose sum is σ = 83486540592. Its totient is φ = 54099801600.

The previous prime is 68595517997. The next prime is 68595518051. The reversal of 68595518045 is 54081559586.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4113041689 + 64482476356 = 64133^2 + 253934^2 .

It is not a de Polignac number, because 68595518045 - 2⁸ = 68595517789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173822 + ... + 409151.

It is an arithmetic number, because the mean of its divisors is an integer number (5217908787).

Almost surely, 2^68595518045 is an apocalyptic number.

It is an amenable number.

68595518045 is a deficient number, since it is larger than the sum of its proper divisors (14891022547).

68595518045 is a wasteful number, since it uses less digits than its factorization.

68595518045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583312.

The product of its (nonzero) digits is 8640000, while the sum is 56.

The spelling of 68595518045 in words is "sixty-eight billion, five hundred ninety-five million, five hundred eighteen thousand, forty-five".