68778474241 has 4 divisors (see below), whose sum is σ = 68779360000. Its totient is φ = 68777588484.

The previous prime is 68778474211. The next prime is 68778474299. The reversal of 68778474241 is 14247487786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68778474241 - 2¹¹ = 68778472193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68778474211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313881 + ... + 485878.

It is an arithmetic number, because the mean of its divisors is an integer number (17194840000).

Almost surely, 2^68778474241 is an apocalyptic number.

It is an amenable number.

68778474241 is a deficient number, since it is larger than the sum of its proper divisors (885759).

68778474241 is an equidigital number, since it uses as much as digits as its factorization.

68778474241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885758.

The product of its digits is 16859136, while the sum is 58.

The spelling of 68778474241 in words is "sixty-eight billion, seven hundred seventy-eight million, four hundred seventy-four thousand, two hundred forty-one".