68030218741 has 4 divisors (see below), whose sum is σ = 72031996332. Its totient is φ = 64028441152.

The previous prime is 68030218721. The next prime is 68030218799. The reversal of 68030218741 is 14781203086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56553596100 + 11476622641 = 237810^2 + 107129^2 .

It is a cyclic number.

It is not a de Polignac number, because 68030218741 - 2²¹ = 68028121589 is a prime.

It is a super-2 number, since 2×68030218741² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68030218694 and 68030218703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68030218721) 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 3 ways as a sum of consecutive naturals, for example, 2000888770 + ... + 2000888803.

It is an arithmetic number, because the mean of its divisors is an integer number (18007999083).

Almost surely, 2^68030218741 is an apocalyptic number.

It is an amenable number.

68030218741 is a deficient number, since it is larger than the sum of its proper divisors (4001777591).

68030218741 is a wasteful number, since it uses less digits than its factorization.

68030218741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001777590.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 68030218741 in words is "sixty-eight billion, thirty million, two hundred eighteen thousand, seven hundred forty-one".