68831219 has 2 divisors, whose sum is σ = 68831220. Its totient is φ = 68831218.

The previous prime is 68831179. The next prime is 68831227. The reversal of 68831219 is 91213886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68831219 - 2⁸ = 68830963 is a prime.

It is a super-2 number, since 2×68831219² = 9475473418051922, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (68831299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34415609 + 34415610.

It is an arithmetic number, because the mean of its divisors is an integer number (34415610).

Almost surely, 2^68831219 is an apocalyptic number.

68831219 is a deficient number, since it is larger than the sum of its proper divisors (1).

68831219 is an equidigital number, since it uses as much as digits as its factorization.

68831219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 38.

The square root of 68831219 is about 8296.4582202287. The cubic root of 68831219 is about 409.8218917051.

The spelling of 68831219 in words is "sixty-eight million, eight hundred thirty-one thousand, two hundred nineteen".