68264018 has 4 divisors (see below), whose sum is σ = 102396030. Its totient is φ = 34132008.

The previous prime is 68264011. The next prime is 68264029. The reversal of 68264018 is 81046286.

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., 67947049 + 316969 = 8243^2 + 563^2 .

It is not an unprimeable number, because it can be changed into a prime (68264011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17066003 + ... + 17066006.

Almost surely, 2^68264018 is an apocalyptic number.

68264018 is a deficient number, since it is larger than the sum of its proper divisors (34132012).

68264018 is a wasteful number, since it uses less digits than its factorization.

68264018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34132011.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 68264018 is about 8262.2041853249. The cubic root of 68264018 is about 408.6930782023.

The spelling of 68264018 in words is "sixty-eight million, two hundred sixty-four thousand, eighteen".