68444178371 has 8 divisors (see below), whose sum is σ = 69597258288. Its totient is φ = 67292100000.

The previous prime is 68444178353. The next prime is 68444178377. The reversal of 68444178371 is 17387144486.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68444178371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68444178377) 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, 111920 + ... + 386541.

It is an arithmetic number, because the mean of its divisors is an integer number (8699657286).

Almost surely, 2^68444178371 is an apocalyptic number.

68444178371 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

68444178371 is a deficient number, since it is larger than the sum of its proper divisors (1153079917).

68444178371 is a wasteful number, since it uses less digits than its factorization.

68444178371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500773.

The product of its digits is 3612672, while the sum is 53.

The spelling of 68444178371 in words is "sixty-eight billion, four hundred forty-four million, one hundred seventy-eight thousand, three hundred seventy-one".