68444442507 has 8 divisors (see below), whose sum is σ = 104296293376. Its totient is φ = 39111109992.

The previous prime is 68444442317. The next prime is 68444442551. The reversal of 68444442507 is 70524444486.

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

It is not a de Polignac number, because 68444442507 - 2¹¹ = 68444440459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68444442587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1629629563 + ... + 1629629604.

It is an arithmetic number, because the mean of its divisors is an integer number (13037036672).

Almost surely, 2^68444442507 is an apocalyptic number.

68444442507 is a deficient number, since it is larger than the sum of its proper divisors (35851850869).

68444442507 is a wasteful number, since it uses less digits than its factorization.

68444442507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259259177.

The product of its (nonzero) digits is 3440640, while the sum is 48.

The spelling of 68444442507 in words is "sixty-eight billion, four hundred forty-four million, four hundred forty-two thousand, five hundred seven".