68378419 has 2 divisors, whose sum is σ = 68378420. Its totient is φ = 68378418.

The previous prime is 68378413. The next prime is 68378441. The reversal of 68378419 is 91487386.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68378419 - 2³ = 68378411 is a prime.

It is a super-2 number, since 2×68378419² = 9351216369879122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68378411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34189209 + 34189210.

It is an arithmetic number, because the mean of its divisors is an integer number (34189210).

Almost surely, 2^68378419 is an apocalyptic number.

68378419 is a deficient number, since it is larger than the sum of its proper divisors (1).

68378419 is an equidigital number, since it uses as much as digits as its factorization.

68378419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 68378419 is about 8269.1244397457. The cubic root of 68378419 is about 408.9212550382.

The spelling of 68378419 in words is "sixty-eight million, three hundred seventy-eight thousand, four hundred nineteen".