68072944619 has 2 divisors, whose sum is σ = 68072944620. Its totient is φ = 68072944618.

The previous prime is 68072944567. The next prime is 68072944649. The reversal of 68072944619 is 91644927086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68072944619 - 2³² = 63777977323 is a prime.

It is a super-2 number, since 2×68072944619² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68072944649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34036472309 + 34036472310.

It is an arithmetic number, because the mean of its divisors is an integer number (34036472310).

Almost surely, 2^68072944619 is an apocalyptic number.

68072944619 is a deficient number, since it is larger than the sum of its proper divisors (1).

68072944619 is an equidigital number, since it uses as much as digits as its factorization.

68072944619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 68072944619 in words is "sixty-eight billion, seventy-two million, nine hundred forty-four thousand, six hundred nineteen".