68519678 has 4 divisors (see below), whose sum is σ = 102779520. Its totient is φ = 34259838.

The previous prime is 68519657. The next prime is 68519687. The reversal of 68519678 is 87691586.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87691586 = 2 ⋅43845793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17129918 + ... + 17129921.

It is an arithmetic number, because the mean of its divisors is an integer number (25694880).

Almost surely, 2^68519678 is an apocalyptic number.

68519678 is a deficient number, since it is larger than the sum of its proper divisors (34259842).

68519678 is a wasteful number, since it uses less digits than its factorization.

68519678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34259841.

The product of its digits is 725760, while the sum is 50.

The square root of 68519678 is about 8277.6613847149. The cubic root of 68519678 is about 409.2026502359.

The spelling of 68519678 in words is "sixty-eight million, five hundred nineteen thousand, six hundred seventy-eight".