68018198 has 4 divisors (see below), whose sum is σ = 102027300. Its totient is φ = 34009098.

The previous prime is 68018177. The next prime is 68018219. The reversal of 68018198 is 89181086.

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

It is an interprime number because it is at equal distance from previous prime (68018177) and next prime (68018219).

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, 17004548 + ... + 17004551.

It is an arithmetic number, because the mean of its divisors is an integer number (25506825).

Almost surely, 2^68018198 is an apocalyptic number.

68018198 is a deficient number, since it is larger than the sum of its proper divisors (34009102).

68018198 is a wasteful number, since it uses less digits than its factorization.

68018198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34009101.

The product of its (nonzero) digits is 27648, while the sum is 41.

The square root of 68018198 is about 8247.3145932479. The cubic root of 68018198 is about 408.2019177086.

The spelling of 68018198 in words is "sixty-eight million, eighteen thousand, one hundred ninety-eight".