68018628 has 24 divisors (see below), whose sum is σ = 158846688. Its totient is φ = 22653376.

The previous prime is 68018627. The next prime is 68018633. The reversal of 68018628 is 82681086.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (68018627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21475 + ... + 24437.

It is an arithmetic number, because the mean of its divisors is an integer number (6618612).

Almost surely, 2^68018628 is an apocalyptic number.

It is an amenable number.

68018628 is an abundant number, since it is smaller than the sum of its proper divisors (90828060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68018628 is a wasteful number, since it uses less digits than its factorization.

68018628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4883 (or 4881 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 68018628 is about 8247.3406622984. The cubic root of 68018628 is about 408.2027779022.

The spelling of 68018628 in words is "sixty-eight million, eighteen thousand, six hundred twenty-eight".