68519419 has 4 divisors (see below), whose sum is σ = 69042600. Its totient is φ = 67996240.

The previous prime is 68519413. The next prime is 68519443. The reversal of 68519419 is 91491586.

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

It is a cyclic number.

It is not a de Polignac number, because 68519419 - 2⁵ = 68519387 is a prime.

It is a super-2 number, since 2×68519419² = 9389821560195122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68519413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261394 + ... + 261655.

It is an arithmetic number, because the mean of its divisors is an integer number (17260650).

Almost surely, 2^68519419 is an apocalyptic number.

68519419 is a deficient number, since it is larger than the sum of its proper divisors (523181).

68519419 is a wasteful number, since it uses less digits than its factorization.

68519419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523180.

The product of its digits is 77760, while the sum is 43.

The square root of 68519419 is about 8277.6457401848. The cubic root of 68519419 is about 409.2021346486.

The spelling of 68519419 in words is "sixty-eight million, five hundred nineteen thousand, four hundred nineteen".