68451118 has 4 divisors (see below), whose sum is σ = 102676680. Its totient is φ = 34225558.

The previous prime is 68451113. The next prime is 68451127. The reversal of 68451118 is 81115486.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81115486 = 2 ⋅40557743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68451113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17112778 + ... + 17112781.

It is an arithmetic number, because the mean of its divisors is an integer number (25669170).

Almost surely, 2^68451118 is an apocalyptic number.

68451118 is a deficient number, since it is larger than the sum of its proper divisors (34225562).

68451118 is a wasteful number, since it uses less digits than its factorization.

68451118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34225561.

The product of its digits is 7680, while the sum is 34.

The square root of 68451118 is about 8273.5190819868. The cubic root of 68451118 is about 409.0661235384.

The spelling of 68451118 in words is "sixty-eight million, four hundred fifty-one thousand, one hundred eighteen".