68848642 has 4 divisors (see below), whose sum is σ = 103272966. Its totient is φ = 34424320.

The previous prime is 68848631. The next prime is 68848669. The reversal of 68848642 is 24684886.

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

It can be written as a sum of positive squares in only one way, i.e., 64144081 + 4704561 = 8009^2 + 2169^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68848592 and 68848601.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17212159 + ... + 17212162.

Almost surely, 2^68848642 is an apocalyptic number.

68848642 is a deficient number, since it is larger than the sum of its proper divisors (34424324).

68848642 is a wasteful number, since it uses less digits than its factorization.

68848642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34424323.

The product of its digits is 589824, while the sum is 46.

The square root of 68848642 is about 8297.5081801707. The cubic root of 68848642 is about 409.8564677039.

The spelling of 68848642 in words is "sixty-eight million, eight hundred forty-eight thousand, six hundred forty-two".