68136674 has 4 divisors (see below), whose sum is σ = 102205014. Its totient is φ = 34068336.

The previous prime is 68136671. The next prime is 68136703. The reversal of 68136674 is 47663186.

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., 42055225 + 26081449 = 6485^2 + 5107^2 .

It is not an unprimeable number, because it can be changed into a prime (68136671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17034167 + ... + 17034170.

Almost surely, 2^68136674 is an apocalyptic number.

68136674 is a deficient number, since it is larger than the sum of its proper divisors (34068340).

68136674 is a wasteful number, since it uses less digits than its factorization.

68136674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34068339.

The product of its digits is 145152, while the sum is 41.

The square root of 68136674 is about 8254.4941698447. The cubic root of 68136674 is about 408.4387860736.

The spelling of 68136674 in words is "sixty-eight million, one hundred thirty-six thousand, six hundred seventy-four".