68645350007 has 6 divisors (see below), whose sum is σ = 74331947232. Its totient is φ = 63364938312.

The previous prime is 68645350001. The next prime is 68645350019. The reversal of 68645350007 is 70005354686.

It is not a de Polignac number, because 68645350007 - 2¹⁴ = 68645333623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68645350007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68645350001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 203092583 + ... + 203092920.

It is an arithmetic number, because the mean of its divisors is an integer number (12388657872).

Almost surely, 2^68645350007 is an apocalyptic number.

68645350007 is a deficient number, since it is larger than the sum of its proper divisors (5686597225).

68645350007 is a wasteful number, since it uses less digits than its factorization.

68645350007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406185529 (or 406185516 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 68645350007 in words is "sixty-eight billion, six hundred forty-five million, three hundred fifty thousand, seven".