68705878 has 8 divisors (see below), whose sum is σ = 103331880. Its totient is φ = 34261920.

The previous prime is 68705867. The next prime is 68705927. The reversal of 68705878 is 87850786.

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

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, 44563 + ... + 46078.

It is an arithmetic number, because the mean of its divisors is an integer number (12916485).

Almost surely, 2^68705878 is an apocalyptic number.

68705878 is a deficient number, since it is larger than the sum of its proper divisors (34626002).

68705878 is a wasteful number, since it uses less digits than its factorization.

68705878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91022.

The product of its (nonzero) digits is 752640, while the sum is 49.

The square root of 68705878 is about 8288.9008921569. The cubic root of 68705878 is about 409.5729799567.

The spelling of 68705878 in words is "sixty-eight million, seven hundred five thousand, eight hundred seventy-eight".