68137834 has 4 divisors (see below), whose sum is σ = 102206754. Its totient is φ = 34068916.

The previous prime is 68137813. The next prime is 68137847. The reversal of 68137834 is 43873186.

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., 41563809 + 26574025 = 6447^2 + 5155^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17034457 + ... + 17034460.

Almost surely, 2^68137834 is an apocalyptic number.

68137834 is a deficient number, since it is larger than the sum of its proper divisors (34068920).

68137834 is a wasteful number, since it uses less digits than its factorization.

68137834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34068919.

The product of its digits is 96768, while the sum is 40.

The square root of 68137834 is about 8254.5644342994. The cubic root of 68137834 is about 408.4411038968.

The spelling of 68137834 in words is "sixty-eight million, one hundred thirty-seven thousand, eight hundred thirty-four".