68878542 has 8 divisors (see below), whose sum is σ = 137757096. Its totient is φ = 22959512.

The previous prime is 68878529. The next prime is 68878573. The reversal of 68878542 is 24587886.

It is a sphenic number, since it is the product of 3 distinct primes.

68878542 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 68878491 and 68878500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5739873 + ... + 5739884.

It is an arithmetic number, because the mean of its divisors is an integer number (17219637).

Almost surely, 2^68878542 is an apocalyptic number.

68878542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68878542 is a wasteful number, since it uses less digits than its factorization.

68878542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11479762.

The product of its digits is 860160, while the sum is 48.

The square root of 68878542 is about 8299.3097303330. The cubic root of 68878542 is about 409.9157907563.

The spelling of 68878542 in words is "sixty-eight million, eight hundred seventy-eight thousand, five hundred forty-two".