68841795994 has 4 divisors (see below), whose sum is σ = 103262693994. Its totient is φ = 34420897996.

The previous prime is 68841795991. The next prime is 68841796019. The reversal of 68841795994 is 49959714886.

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., 60012750625 + 8829045369 = 244975^2 + 93963^2 .

It is not an unprimeable number, because it can be changed into a prime (68841795991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17210448997 + ... + 17210449000.

Almost surely, 2^68841795994 is an apocalyptic number.

68841795994 is a deficient number, since it is larger than the sum of its proper divisors (34420898000).

68841795994 is a wasteful number, since it uses less digits than its factorization.

68841795994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34420897999.

The product of its digits is 156764160, while the sum is 70.

The spelling of 68841795994 in words is "sixty-eight billion, eight hundred forty-one million, seven hundred ninety-five thousand, nine hundred ninety-four".