68013627749 has 8 divisors (see below), whose sum is σ = 69641200512. Its totient is φ = 66404656080.

The previous prime is 68013627733. The next prime is 68013627793. The reversal of 68013627749 is 94772631086.

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

It is a cyclic number.

It is not a de Polignac number, because 68013627749 - 2⁴ = 68013627733 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 68013627749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68013626749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4642874 + ... + 4657499.

It is an arithmetic number, because the mean of its divisors is an integer number (8705150064).

Almost surely, 2^68013627749 is an apocalyptic number.

It is an amenable number.

68013627749 is a deficient number, since it is larger than the sum of its proper divisors (1627572763).

68013627749 is a wasteful number, since it uses less digits than its factorization.

68013627749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9300547.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 68013627749 in words is "sixty-eight billion, thirteen million, six hundred twenty-seven thousand, seven hundred forty-nine".