68103618 has 32 divisors (see below), whose sum is σ = 148919040. Its totient is φ = 20591760.

The previous prime is 68103613. The next prime is 68103661. The reversal of 68103618 is 81630186.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (68103613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40021 + ... + 41687.

It is an arithmetic number, because the mean of its divisors is an integer number (4653720).

Almost surely, 2^68103618 is an apocalyptic number.

68103618 is an abundant number, since it is smaller than the sum of its proper divisors (80815422).

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

68103618 is a wasteful number, since it uses less digits than its factorization.

68103618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 68103618 is about 8252.4916237461. The cubic root of 68103618 is about 408.3727250442.

The spelling of 68103618 in words is "sixty-eight million, one hundred three thousand, six hundred eighteen".