68490118 has 4 divisors (see below), whose sum is σ = 102735180. Its totient is φ = 34245058.

The previous prime is 68490089. The next prime is 68490143. The reversal of 68490118 is 81109486.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17122528 + ... + 17122531.

It is an arithmetic number, because the mean of its divisors is an integer number (25683795).

Almost surely, 2^68490118 is an apocalyptic number.

68490118 is a deficient number, since it is larger than the sum of its proper divisors (34245062).

68490118 is a wasteful number, since it uses less digits than its factorization.

68490118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34245061.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 68490118 is about 8275.8756636383. The cubic root of 68490118 is about 409.1437972146.

The spelling of 68490118 in words is "sixty-eight million, four hundred ninety thousand, one hundred eighteen".